Xbox and 500GB Hard Drive

Anyone with a modded 'Box--

Would a 500GB drive be supported and for all intents and purposes work well?  I've had a 200GB drive for a while now and need more space as it's filled to bursting.  If any of you have this setup, I'd also be interested in knowing about how many gigs E,F, and G format to.  Do F and G just expand to forever, or do you have to create an H or something?

Oh yeah, and I don't think there are but--ARE there any internal HD's over 500GB?  That's the largest I was able to find on Newegg, but if any larger exist, it'd be nice to know now...

It's a hell of a Media Center.  It's convenient to be able to bring damn near my entire collection of shows, movies, games, emus and music with me wherever I go.  Simple as that.  Yeah, I hated on the Xbox harder than anyone back in the day, but I can't deny it, it's become a staple of my living room.