SamuelRSmith on 27 August 2008
I believe you can. If you just log onto your account on the new PS3 (Accessible via going to "Sign up for PSN -> "No I will use an existing account" under Network), and go to the PS:Store you will be able to redownload all of your purchased items.
I think there is a limit, though, like 5 times per game... to stop people from fraudulantly using the system.
