You might want to check out
Game Audio Network Guild - HOME. If you're serious about making music for games, they're a great bunch to be amongst (lots of respected industry pros on the forums).
Other websites you should check are
GameDev.net - all your game development needs and
Gamasutra - The Art & Business of Making Games. There's also a large community of indie game developers over at
Game Development Tools And Software :. GarageGames
Good luck!