According to a THQ article, Space Marine will be getting a limited run collector's edition:
http://www.thq.com/uk/gamenews/show/15273/5386/
The Warhammer® 40,000®: Space Marine® Collector’s Edition features a 10" replica Purity Seal, a glossy hardback art book, the official Space Marine soundtrack, a premium pack of 25 character information cards and a copy of the game, packaged together in a premium box set. The Space Marine Collector’s Edition is available at selected online retailers in limited quantities.
Exclusive to UK for 360, PS3 and PC.