Regarding the PS2, two things:

1) Which Metal Gear Solid game were you looking to get?

2) Shadow of the Colossus is a very high quality game, in my view. It is, however, short. Depending on the person, it can take anywhere from 8 to 20 hours to complete the story, and that is about it to the game. However, I still advise buying it- it is that good.