Yeah, Macgamefiles is really good.
But for Poker? Just go to www.pokerroom.com for online and free poker. No need to install and there's also an option to play with real money.
That's called "software piracy," is illegal, and is also against board rules to discuss it here.
If you want Prey, Unreal Tournament, or any other commercial game for your Macintosh, go down to the store and pay for it. Don't download it illegally, and don't come here to discuss downloading it illegally.