Should be enough as each PCI-E probably has it's own 18A 12v rail. I thought you sold that 8800 Ultra ??
I had a 8800GTX OC BFG
I was going to sell this but i just couldnt let it go id rather have over kill for my games then just the minimum
so yah my PSU has x4 12v Rails with 18Amps on each 1
so its good to know iam all good
Thanks for the fast reply EVA much appericaited