I know New York has a killer music scene as well. But you're right about the blues, it seems like the most natural thing for most people to play when first jamming together. If I ever end up doing anything I would like to either play soft rock (like Chili Peppers, Weezer, Smashing Pumpkins, Radiohead type stuff) or metal.
Anyway you'll probably end up loving this site. I know I do. The most valuable thing to me is that you can ask the instructors questions and they'll usually get back to you within a day or two. Good luck!