20GB version will retail for $499 compare that to the standard xbox 360...much better value
The differences between 60GB and 20GB
"The 60GB console features a front-slot-loading Blu-ray optical-disc drive and four USB ports, as well as memory stick, compact flash, and SD card reader support to provide for an absurd level of media connectivity. The 20GB PlayStation 3, in comparison, won't have memory stick, compact flash, or SD card ports. The 60GB version will also come with Wi-Fi built-in, but the 20GB version will only have the Ethernet port."