Ok. I'm getting to the place where I'm starting to wonder about my PS. I have a Seasonic 550W modular. I like it and would recomend it for anyone who wants a good, quiet PS. But I'm wondering I'm running up against it's limit. What I'm currently running an AM2 x2 5000 in a full ATX with 4GB across 4 sticks of DDR2. I have four drives. 1 10k RPM, 3 7200 rpm (1 slush drive, 2 in a mirror array on a PCI card) a stand alone nic and a audigy 2 and a 8800gt vid, a DVD+RW drive Running a koolance loop running off of a dual bay res/pump. A total of 7X120mm fans connected to a scythe fan controller. How close am I to my 550 watts? I'm thinking of going to an SLI set up in the future with another 8800gt or going quad core with an AM2. Will this hold it? Ideas? Thanks for your help.