buy the cheaper version. get motorstorm, save 40 bucks.
good start for the price drop, but imo it isn't going to make a huge difference in the current sales market for consoles, MS can drop their price anytime as well but both are gonna get smoked by the Wii
edit: just checked newegg.com
price difference between a 60gig and 80 gig hdd is 10 dollars.(western digital "scorpio" drives. 49.99 for 60 and 59.99 for 80... 74.99 for 120 gig
SO even all the other equipment stayed the same in the console....sony's going to make ATLEAST 50 dollars per unit "more" (ie lose less money)by charging that extra 100 dollars