If your not ocing then get coarsair value select. If your not ocing, don't get DFI lan party and get the MSI Neo4 SLI. If your picking the DFI board, that means your ocing, because all its perks are for ocing. Pick the MSI neo4 sli for around the same money, because it has better sound and also sli, which the dfi does not have.
6600GT PCI-E for sale/Trade. Check the FS/FT forums on tech-forums for details.