I think you are right INFRNL. Have been playing around with
Corsairs PSU Finder and
eXtreme Power Supply Calculator. Corsair obviously recommends a much heavy supply than eXtremes does since they are selling them and eXtreme isn't. I might get by with 3 250s, the new 55nm ones but could not OC anything. Corsair says I need a 1000 for 2 260s and I know that is not correct as many are using 750s for sli. Nvidia cards always required more PSU than comparable ATIs which I find interesting.
EVGA says the 512 meg 250 requires 24a and 450w supply. The 55nm 260 216 was 36a and 500w.
eXtreme Calc says 473 watts with 2 260 216s, a Phenom 810 no OC and the rest of what I have in it. A 750 at 80% is 600 watts. But with 60a is it enough?
Still thinking.....:confused: