Title says it all, go and reserve it at your prefered retailer, support the game, support your community. That is all.
SE $40
LE $? (likely $50 or $60, the price/bonus hasn’t been announced yet, pay attention to the link below for more info, or check the homepage of Dustloop)
http://www.aksysgames.com/2011/12/13/aksys-games-2012-line-up/