I have used my PS3 more in the short time I have had it, than I have used the XBox360 over the last year.
Other than PGR3 and a few games of Fight Night3, the Xbox has not lived up to its hype.
The PS3 is useful and usable as a web browser, BluRay player and gaming system.
I'm upgrading the 20GB harddrive to a 120GB one this evening.. I can't even attach a USB device on to the XBox360. Oh - and no 1080p support either