Square Enix has announced the first wave of pre-order incentives for Tomb Raider. Waves two and three will be announced at a later date.
Amazon
Best Buy
Gamestop
Personally, I think the Amazon incentives are looking like the best ones. Not only does Lara Croft go Predator, but you also get a documentary and an art book. Either way, Tomb Raider is looking like a great game. Expect it to launch March 5, 2013.