>My main concern is that the GTX580's will bottleneck the E5400 because they arent very fast.
oh gee, my troll-o-meter is going off the charts here.
cmon, even a 7 year old kid would know that a $920 GPU setup will never be bottlenecking a $100 CPU if they were given the definition of bottlenecking
you are like saying "would a nuclear power plant powerful enough to run my alarm clock"
0/10 for trolling, not even a nice try.