Seems like a great price for this collectors edition of Bioshock 2. The cheapest I've seen it.
Next Cheapest: £19.99 @ MyMemory
BioShock 2: Special Collector's Edition contents:
BioShock 2 game
12" vinyl LP with BioShock orchestral score
Audio CD with BioShock 2 orchestral score
3 vintage Rapture advertisement posters (rolled)
BioShock 2 164-page hardback artbook
Remember quidco for further savings.