I thought about that but I'm planning on getting the Corsair 900D so I can do a tri CFX/SLI and water cool the GPUs. Money won't be an issue since I also plan on adding another 27" from dell if not 30" LCDs.
I guess I might just add another 670 then and save the money. The way I was thinking was that I make a whole new pc and make this as a HTPC for wife. So get 3770K, new mobo, keep the cooler, second monitor, 2-3 new cards, new case, new ram. Get it, a completely new system. I guess I might as well wait til summer and see what the new cards and CPUs have to offer.