360 has the $20/mo fee for online play. PS3 goes online for FREE.
$20/mo will add up fast if you like online play.
Gamestop has refurb PS3's that have backwards compatibility to PS2 and PS3's work with all PS1 games. a fair bit of free add ons for games on the Playstation store PS3 is also a much more powerful platform.
PS3 has motion sensing 6 axis controller (sorta like the Wii) w/ force feedback...plus, the PS controller is just really nice.
PS3 also has Bioshock, Resistance 1&2 Gran Turismo, Grid, Soul Calibur...I think it has Fallout as well but not sure. it may not have as much 3rd gen games as a 360 now but it will. overall if you consider all the game generations it's got more games and a Wii or 360. plus DVD and Blue Ray.
not much point in getting an HD DVD drive for a 360 now....