While the show has not offically begun yet some sites have already seen some of the things bieng shown there:
Nvidia G70
Dual 6800U cards
Sold state storage
Motherboard which supports AMD and intel
There is not much info on any of these just yet but give it a few days.
Personally the solid state storage 'drive'/card interested me most. Loaded up with 1 or 2 gigs of RAM and it would make the ultimate windows drive