Grainger Games isn't looking too healthy at the moment after their line of credit was pulled following a bit of market panic following other recent high street closures. They haven't folded yet and may pull through but just in case if you're ordering online or pre-ordering I'd suggest using Paypal or a Credit card.
NOTE: I wouldn't normally post links to ebay however this game became damn near unobtainable for a decent price in the UK immediately upon release (Deep Silver Strikes again) and I know there are still people trying to get a copy. Seller has 4 left listed as new. and every other copy tends to be on sale for £45 and up. Consider this not so much a CAG deal as a head's up for anyone still hoping to get a copy.