hrm, as follows:
01. ps1, ps2, ps3 & psp playback
02. built in ethernet
03. 80gb hd (at least)/(upgradable)
04. lcd screen (like that of a dvd player)
05. dvd remote (in box)
06. memory card slot (system/controller)
07. a way to install codecs on hd for movie playback
08. 2gb cpu/256mb graphix/1gb ram
09. 5.1 compatible
10. 1 controller (in box)
11. keyboard & mouse (in box)
12. their prize game at the time (in box)/(good 'ol nes days)
13. & i want it to be quiet!!
hrm, all for under $500?