I am running 2 Nvidia GTX 465 video cards, i7 920, 6 gb RAM, 2 10,000 rpm WD raptor hard drives @ 600gb for games and stuff, 1 320 gb for OS, 1 WD 1 TB, for User files, and a DVD rewriter. All this and several USB devices(keyboard mouse ad Creative wireless headphones)powered buy a 850 watt ps. Do I need to be looking for a 1000w ps? I am starting to see Video card problems like one will stop working for seemingly for no reason. I restart the computer and everything works again. I do have all the latest drivers, I check for updates weekly. So it is either one of the video cards or the ps I would think. Also I am running 3 LCD displays and I am going to get a 4th that is 3D ready, will going 3D use more power? Any ideas?