Obviously he doesn't want a PS3 when the title clearly states "Which version of the PS2 should i get ?". Jeez people.
I say which ever one is the cheapest. Check craigslist and such.
That is right, he doesn't want a PS 3, but a PS 2.
Getting the cheapest doesn't neccessarly mean saving the most money. I say get it brand new at the store in the box shrink wrapped. Why because when buying second hand you don't know how long it will last for and what kind of condtion it is, or how good of a condtion it was kept. I bought a 360 wireless controller for $40, (was saving $30 at the time) and it only lasted one month.
I wouldn't trust Craigslist unless you are paying what, $10 for it.