I read somewhere they had a quad-core with dual 8800s and 4gigs of ram at the E3 demo.... but that was DX10 so what you´ll really need is a different question. I´d bet a dual-core and a 8800 with 2gigs of ram is the minimum to play ith though.
Anybody else here ever buy or rent a game where the min. specs where not even close to what you need ??? Sometimes the box just sayes you need a 128mb DX9 card...... that could be anything, from great to garbage.