Hi, I was planning on adding another 4870 to my current setup. Unfortunately my current PSU (sig) only has 2 x PCI-E 6-pin connectors. Do you guys have good suggestions for this kind of a setup? I've heard a lot of good things about the PC Power & Cooling Silencer 750w and the Corsair TX750. The only problem is, that I like my current modular setup quite a lot, so I was planning on getting one for x-fire. I'm also looking at a single 12V rail, since those seem to get a lot of recommendations from people. Thanks in advance. Edit: Sorry if this was the wrong section, but I'm also overclocking my cpu to around 4 GHz and both graphics cards cooling them with Accelero twin turbos.