Usually you have to wait a considerable time before a top selling game is discounted, but not so for one such gem. Amazon has discounted Dead Space 2 for some unknown reason, probably to spread the word of Unitology faster and further and start the necromorph party early here on earth.
Anyway, you can get the unleaded version on Xbox and PS3 for 41.99, and the fully loaded Collector’s Edition for the normal regular edition price of 59.95.
Personally, I would recommend the Collector’s Edition, since that comes with a replica plasma cutter. After a long evening of dark corridors and mutant undead horrors, you’ll be sleeping with that plasma cutter.
Not sure how long this deal is going to run, so best act now. You know what, buy one for me while you are at it.