My cheap ass 650w power supply is dying under the weight of my new build. Just been waiting for the money which I now have. This is my system in the sig but it may not be clear is that I want to add another gfx card to this system soon. Also I have 3 SATA HD's, DVD drive, an SSD and 5 fans! I think I will need a 850 watt unless I stand corrected. I also know I need a decent brand. I have looked at the power supply FAQ but I am not that techie to know which one to buy. I will be buying off Amazon UK, Scan UK or Over clockers UK. Thanks for any help. I am desperate to know which one I need as this power supply is dying and making weird noises. Also I have had some strange fails recently. Would I need 2 x 12v lines to run 2 cards? Does that mean they will be dedicated to each gfx card? My 5850 (like most cards nowadays) has 2 x 4 pin power plugs. So I would need 4 of those for 2 cards. Sy.