Worried that the download copies of BioShock Infinite will sell out, when it lands on the 26th of March? You might want to sit and think about that for a moment, or alternatively you could pre-order the game from Steam - you know, before you know whether it's any good or not. Your wallet may or may not thank you in the long run, but at least you'll get a bunch of free stuff, including the spin-off Industrial Revolution puzzle game, some in-game tat, and a copy of the original BioShock. If an unspecified number of other people put their money down as well, you'll also get a copy of XCOM and several TF2 items, but I don't see how anyone would be interested in those.
Those TF2 items you won't be interested in include Vox Diabolus (a "Vox Populi anarchist mask"), The Pounding Father ("Heavy cannot tell lie. Heavy is first President of United States. Of crushing little baby men"), and The Steel Songbird ("Why not treat yourself to the haunting rhythmic symphony of bolts being constantly pooped by this mute, easily terrified incontinent bird?") However, they will only be unlocked if other people pre-order too - the counter is currently at 19%. The reward tier after that doles out a copy of the excellent XCOM.
BioShock Infinite is out in just a few weeks, and Tom was rather impressed with it in his recent hands-on with the game.