I have to do the same thing. My old "fat" ps3 is dying and I just picked up a new slim. Is it better to do it the way described in this thread, or use the "data transfer utility" where you hook the ps3's together with a network cable?
I'd really like to be 100% sure about this before I start, I have 2 accounts, my main account and a GTP_ account and both have a lot of progress and cars.
Should I use the data trasfer method, or just install GT5, log into my accounts and use the saves from my usb stick?