Weddingbee boards

small correction, don't want anyone to end up in the wrong places :) ... the zoo in Sydney is called the Taronga Zoo. Take the ferry there, it's pretty cool.

Everyone's had some really great suggestions and pretty much covered the good stuff. I'd be weary of renting a car to drive up the coast. Australia is just as big as the US and in between the cities, there's lots of nothing. Beautiful views, different landscape, but don't count on stumbling upon cute little towns with quaint B&B's to stay at. Much better to spend your time flying to where you want to go. The less expensive airlines are virginblue.com.au or jetstar.com.au.

There are markets every weekend in Sydney (and the other cities but I don't know specifics about those), the most popular ones are in Paddington (Saturdays, Oxford Street - GOOD shopping on this street!) and Bondi Beach (Sundays). The one at the Rocks (an area underneath the harbour bridge) is good too but I'm not sure what day it's on, I'll check.

I'm at work so I can't go on and on right now but I'll pull some info together and come back with more! Definately put the Opera Bar on your list of places to get a sunset cocktail. It's, obviously, at the Opera House, right on the water and gorgeous views, gorgeous people too. Expensive cocktails (all cocktails in AU are, about $14 AUD each), but SO worth it for a few!

When I went to Australia I spent the bulk of my time in Brisbane, Sydney, & near the blue mountains. I love every minute of each spot!

If my memory serves me correctly though, Brisbane is a very low key, small town. But it was so darling, and the people there were so nice and accomodating! Not really near the ocean or anything. So my input may not amount to much. 

We did go to some random amusement park called Wonderland or something, where we saw Koalas. ;o)

Everyone has got great suggestions. You could drive over to the "Blue Mountains" near Sydney and do a beautiful walk there (if you and your FI are into that). Australia is one of my all time favorite places in the world and I've done heaps of travelling. G'day!

ok I am back and hopefully armed with helpful info!

Airlines: JetStar, VirginBlue, Qantas (Qantas is usually more expensive than the other 2) If you are not a flyer or can't stomach the thought of more flying after getting here, Greyhound busses go all over. But as I have said before, Australia is huge and its best to fly so that you aren't wasting your honeymoon on long drives.

Victoria
Melbourne: there are 2 airports, Avalon is about a 45 min drive to the city so would be an expensive cab ride, but you can hire your own car from there. The wine region is called Yarra Valley. Melbourne is known for good food (the top restaurants are in Melbourne, not Sydney) and good shopping (Chapel St - it's SO long!). I haven't spent a lot of not work-related time in Melbourne so I don't have tons of info but my girlfriends and I are planning a trip in the coming months so I'll post more after that. Definately drive the "Great Ocean Road" (I  still haven't done it but everyone says its a must do). www.greatoceanroad.org

New South Wales
Sydney: there's a pretty good bus system in Sydney www.sydneybuses.info It goes all over the city and out to all the beaches. Train info can be found at www.cityrail.com.au but for getting around the city and surrounding area, the busses are better. Areas in the city are: The Rocks www.therocks.com, a historical area right underneath the Harbour Bridge. Very cool to wander around in. Turns out the markets are fri, sat and suns.  I recommend the Bridge Climb, I did it at night and it was so pretty with the city all lit up. www.bridgeclimb.com Circular Quay, where all the ferrys are that go for harbour cruises and you can take ones to Manly Beach (which is on the North side of the Bridge). This is also where the Opera House is. Right next to the Opera House is the Royal Botanical Gardens, home of 'Mrs. MacQuaries Chair' which is the place with 'the best view' of the bridge, opera house, city. The Museum of New South Wales is next to another park call The Domain. If you are into art, its a pretty good museum, that has a variety of artwork, including aboriginal art. On the other side of the CBD is Darling Harbour. There are tons of restaurants. Very active nightlife here!  Another big market, Paddo's market is in Chinatown. Not to be confused with Paddington Market, which is on Oxford St (big shopping st in Syd, where all the Aussie designers have their stores). Outside of the city, some places to go are Watson's Bay, climb up the Gap (big cliffs), have lunch at Doyle's on the water. Obviously Bondi Beach. Have breakfast at Icebergs www.icebergs.com.au Lots of other restaurants and shopping on Campbell Pde (the st that is on the beach). There is a walk along the coast that connects the Eastern Suburbs Beaches. It starts in Bondi by Icebergs, goes to Tamarama, Bronte a couple nice cafes here for breakfast/lunch, Clovelly (good for snorkling), and Coogee (they call this a backpackers beach because along with Bondi it is popular for tourists). Lots of cafes and shops here too. The wine region is called Hunter Valley. You can do a day trip out from Sydney and they will tour you around a few vineyards. (this is prob true for all the wine regions in the other states) Same with the Blue Mountains, I did a day trip with www.oztrails.com.au which was really nice.

Queensland
Brisbane is a nice city. You can take a train out to Australia Zoo from here. www.australiazoo.com.au where you can get your fill of Aussie animals. Up the coast is Byron Bay, a hippie kind of town. Surfers Paradise. The Gold Coast which includes various beaches and is home to Dreamworld (which I think is what an above poster was talking about). It is a cheesy amusement park  but I held a Koala here and got to hang out in a pen and pat wallabies. Noosa is nice, beautiful beach. You can do a sailing trip throught the Whitsunday Islands, leaving from Airlie Beach. On Fraser Island you can do a 4WD Jeep day trip either from Hervey Bay or Rainbow Beach. www.fraserisland.net The next city, Cairns, I didn't think was crash hot but I was only there a couple days so I can't really judge. Unfortunately I haven't made it any further north but have heard Port Douglas and Daintree are amazing. There is a train ride through the Daintree rainforests.

Western Australia
Perth and the city right next to it Fremantle are pretty cool. I liked Fremantle because it was a bit more historic and lively. The wine region to the South of Perth is called Margaret River. Haven't been but I here Broome (north of Perth) is beautiful.

The rest of the places I haven't been to but I'll will tell you what I have heard.

South Australia
Adelaide, wine region (the best in Australia) is the Barossa Valley. Kangaroo Island.

Northern Territoy
Darwin, is the most outback of all the states. But honestly, once you are away from the coast, every state is 'outback'

Uluru, Alice Springs... the big red rock. It's smack bang in the middle of the country and expensive to get to. I have heard its beautiful but not necessarily worth the trip and money. Also you are not supposed to climb it because it's offensive to the Aboriginals.

Whew, I think thats all for now folks. Let me know if you have any more questions or are looking for a specific type of experience I didn't mention (sports, etc.). Also if you want specific recommendations for restaurants or anything in Sydney!

I forgot about another place I went to - Magnetic Island, off of Townsville in Queensland. There is a hike up a hill where there is another great view but you can see Koalas in the wild on the walk up there. (and by wild, I mean sleeping in trees - they are so cute!)