Any good conventions you know of?

Hey, I've never been to any kind of convention and its something I've wanted to do for a long time. I'm mostly interested in bad movies, though I'm also quite the SciFi nerd. Anime is also a love of mine, though I haven't been able to keep up with it for the last 5 or 6 six, so I'm less interested in purely anime cons. Anyway, I was just wondering if anyone has a favorite con to recommend.

P.S. I live in Southern Wisconsin, Madison to be exact, so something close by me would be optimal, although I don't need this to be all about me. If you have a local con you love tell me about it, just let me know where it is so I don't get too excited should I be unable to travel the distance.

It'll take a good eight hours to drive there, but in Toronto every year, the Canadian FanExpo's a great horror/sci-fi/anime/comic con. It attracts quite a few notable names (it got William Shatner and Adam West last year) and it's not nearly as busy as ComicCon and the like. It's pretty fun, and I'd highly recommend it.

Thanks, I'll look into it.