As I am thinking about getting a new gfx card, I was wondering if my Thermaltake TR2-420w would function well with it. As I have a device which I am able to monitor the power consumption at the outlet, I will be using that. When I stress my computer with 3dmark06, it max's at around ~240-250w. Also with other stressing utilities (ATI Tool, Everest), it maxes at around the same power consumption. My 8600gts I think consumes around ~85w. (It can't be much higher than the PCI-E power rating of 75w, since a 8600gt does not require a 6 pin power connector) But, does a 8800gt consume more than that? It can consume up to 150w, because of its PCIe power connector which is rated at 75w and the PCI-E slot. Bur, does it use all of its available power? The same question with the 4850. Would my PSU be able to handle either one comfortably, or would it be pushing my 420w PSU? As I know that PSU's can't spit out that many watts when their internal temps go up because of the higher load, so just wondering. I'll probably wait until the 9800gt's come out though to make a decision, since they are based on the cooler, less power consuming g92b core. Also, would a vf900 would well for a 8800gt/4850? As I currently have one on my 8600gts. Thanks.