i do know, however, that during play you will find and be able to buy different peaces of n7 armor to use with the standard suite
EDIT: ok only th en7 armor is open with the standard edition, the collector armor comes with the collectors edition, and the cerberus armor opens up with a cerberus network card (you can buy one off the me2 site i think.)
[Edited by agentx250, 3/29/2010 10:38:49 AM]
Personally I prefer the N7 armor after customizing it just right, but some of the other armors look cooler.
Blood Dragon, Collector Chitin, Inferno, Cerberus Assault, and Terminus Assault armors are all the non-N7 armors, but some are mutually exclusive and can't be acquired any more (Terminus was for pre-orders placed with Game Stop, and Inferno was for Pre-Orders placed with digital distribution methods such as Steam).
Blood Dragon, Collector Chitin, and Cerberus Assault are all free if you meet the criteria. Blood Dragon is for having purchased Dragon Age Origins, Collector Chitin was for buying the Collector's/Deluxe edition, and Cerberus Assault comes with the Cerberus Network's free DLC packages.