Weddingbee boards

Over the past year and a half, I've become super close to some of my classmates (our classes are in a co-hort model, where we have every single class with the same group of people every semester), so naturally there are some that I want to invite to the wedding.

On the other hand, there are some who I do not want to invite or have no real bond with.

I know that if I don't invite every single person, some people who don't get an invitation will be offended. While I'd like to think that the people whom I invite would be able to keep things a secret, I know that it probably just isn't possible and it is kind of lame to have to keep things hush hush.

So...what should I do? I have already addressed invitations to my close classmates/friends, but I haven't sent them yet.

If I sit down and type out a short e-mail inviting everyone in the class to attend, and then give the invitations to my close buds, would that be rude or work ok? I know e-mail invites are probably a faux pas, but aren't there certain situations where it is OK (classmates, co-workers, etc.)? I suspect that the people in question won't come anyway (the wedding is an hour away, so you'd have to really want to come to drive all that way), but they will raise an issue if not invited and I don't want to hear it, cause other people to listen to it, or be in the midst of some drama. These are NOT the type of people I'd want at my wedding, really, but I don't know if it is worth all the fuss to not ask them to come to a wedding they probably won't show at anyway.

Help?