I haven't been real impressed with bittorrent. It's a little slow even for my 1.5 broadband. I'll be sticking with the classics for now:
www.sharereactor.com for the file names.
www.overnet.com for the files themselves.
I just beat Homeworld 2. It was impossible without cheats, and even with them it was still way too damn hard. That entire game is like a nightmare of never ending invincible bosses.