First things frst, you need to set a date and decide what kind of wedding you want. Small, large, ballroom, garden, casual, formal, etc. You also want to start thinking about colors you might want to incorporate and elements that you have to have, such as mason jars, polka dots, photobooth, etc. Also, the other big one is guest list and budget. Decide what your budget is and who is a must have on the guest list.
Then start looking for vendors. I would start with venue and photog, because theose seem to fill up the quickest. The venue REALLY sets the tone for the event, so do lots and lots of research. Dont be afraid to ask for discounts and haggle, they will budge, you just have to ask. My photog gave me a $3k discount because he had always wanted to shoot a Halloween wedding.
REsearch lots of inspiration and save it all in a folder on your computer. Pick out weddings that you love and save them, save pictures of bouquets, etc. This will help you decide what things are a common trend with what you like and may help you decide what it is that you really want. Some good inspiration sites are:
http://theperfectpalette.blogspot.com/ (lots and lots of color inspiration!!!)
For the slightly more offbeat:
Offbeat Bride: wedding ideas with an alternative twist
For some good budget and DIY advice:
Plus, of course…. the BEE! There is a TON of really awesome info in the Blog archives here.
If you want any help, or want more advice, feel free to PM me. I was super clueless when I started out and remember the steep learning curve!