[PCI-EXPRESS] 6800 vs. 6800 GT

[TopAce]

I can't wait until nForce4 comes out, because i'll get it and start building my new gaming rig. I've been trying to find a 6800 GT PCI-E, but have no luck, because it seems like most stores they are out-of-stock. I was looking at Gameve.com, and saw a 6800 PCI-E. It's almost $100 less. Would i see much difference in performence from a 6800 GT to a 6800? Also, does MSI make good vid. cards?

Thanks,
Ace