This is possibly the hottest game to hit the Xbox360 all year, and massively anticipated all over the place. Eary reviews have been very positive and the game is the spiritual successor (i.e. made by all the same people) to the classic PC game System Shock. Playable demo for the 360 version released this morning if anyone needs convincing, PC owners will have to wait.
This is the only UK preorder I've found so far for the Limited Edition of the game, which includes a 6" figurine of one of the enemies from the game (the Big Daddy), a soundtrack CD, and a Making-Of DVD. After Quidco, it's going to come in at only a few quid more than the standard edition game will be on the high street -- gotta be a bargain!