I was thinking of getting a PSP, mainly because i really like the old PS1 games such as spyro and heard they could be downloaded onto the PSP from the playstation network. But when i did a little research on a gamer website somebody said you needed a PS3 as well as a PSP to play games on a PSP from the playstation network? Is this true? because i already have a wii and an xbox so im not getting a PS3 too! is it true though. do i need a ps3 to play the old ps1 games? or can i play them just with a psp?