hello. im looking for a good am3 board that supports sli. i would like to have both pci e lanes at 16, and maybe support usb3, sata6. newegg or tigerdirect would be good. im planning on using my 470 as dedicated and my gtx 260 for physx, and later getting a 2nd 470 for sli and get rid of the 260. much thanks oh yeah, budget will be around $150 tops