Ya, the GTS512 comes with a better cooler, 25% more shader processors, and can overclock much higher. I can get my 512's to run 775 core and 2100 memory. Also my cards both came with a copy of crysis.
Well, I am pretty set on a 8800GTS now. The next thing on my list is a motherboard... my knowledge is pretty limited in this area heh. Any suggestions based on the build I have listed in sig?
If its SLI compatible...cool. If not, thats ok too. My max resolution will be 1680x1050 since I have a 22", and I can always bring the res down a bit if needed, no biggie.
Oh and as far as the Thermalright ultra-120 goes, I hear it runs about 1C cooler than the Zalman, and its about the same price, so yeah I may go with it instead.