I am planning on installing a second 470 in my rig ,and was wondering ,being that I am using P55 ,will it be worth it ? I can't imagine what kind of muscle 2 OC'd 470's would pump out!!I do have the FTW200 ,which has the NF200 ,to supposedly add more PCIe bandwidth . I have heard that ,no matter what , I will still get 8x+ 8x PCIe performance,and inferior scaling? Also ,Should I get the exact same Gigabyte card ,or one of the Non -reference cards. For instance ,if I get a superclocked GTX470 ,will my performance be lopsided? I see some really great prices for the 470's now .I got mine ,like the first week they came out .I remember people were gouging on ebay for like $450 and up . Prices seem to be around $300 now!!