Get the PS2. When the PS3 comes out it won't have a multitude of great games, plus it's uber expensive. Also, I hear new consoles always have bugs during the first relase.

The PS2, however, has many great games, can play PS1 games, will be very cheap, and will buy you a lot of time. By the time you are done with the PS2 the PS3 will be at a reasonable price, there will be a lot of games and the bugs will be fixed.

Go with the PS2, man.