DarkGryphon2048 said:

So I'm considering buying a PS2 slim and a ton of games for it.

Don't forget Shadow of the Colossus and Ico, they are not to be missed. I'd also highly recommend Citizen Kabuto, I tend to recommend it everytime I get the chance because it is such an awesome game, but my recommendations usually fall on deaf ears and I have actually never met another person who has played it (that I know of). I usually see copies of it at Gamestops for $1.99 (though the PC version is superior to the PS2 port).

Half-Life is another game I would recommend for the PS2, even if you have played the PC version, I found it fun to have on a console.