I needed a Power Supply ASAP so I bought one locally - an Antec 850 watt for $200.00 bucks. I want to buy one online and return this one as it's way overpriced. Anyone have any recommendations that is modular and will run my gear better than the one I listed below? Might as well save some money...
Your 4870X2 requires 6 pin and 8 pin pcie psu connectors.
A quality unit with these two connectors should be fine, since the rest of your system is typical.
Quality units come from PC P&C, Corsair, Seasonic, Antec to name a few.
A quality unit will be able to drive those two connectors at full loads and temperatures.