The play.com PS3 exclusive on Dead Space 2: CE has gone down in price again. Started at £59.99, went down to £49.99 for a few weeks, now it's at £32.99.
Dead Space 2: Collector's Edition Includes:
Dead Space 2 game
In game Rivet Gun unlock
Critically acclaimed Dead Space Extraction in HD with PSMove Support
The Isaac Unitology Suit and accompanying Force Gun offer unique advantages to the player when used in Dead Space 2
The Dead Space 2 Original Soundtrack features an hour of music compiled from the score of Dead Space 2. Also included is a "Scoring of Dead Space 2" featurette
The Dead Space 2 Collector's Edition features a rare lithograph depicting Necromorph transformation concept art by Visceral Games artist Brett Marting
Don't forget Quidco.
FYI: HMV exclusively have the X360 Dead Space 2:CE (£69.99):http://hmv.com/hmvweb/displayProductDetails.do?sku=646643&WT.mc_id=101689