Well, between those two systems I would get the AMD and add another 260 for SLI instead of buying a 295. The performance difference between the 2 260s in SLI and a single 295 would be minimal especially since they would be bottlenecked by the CPU. Either way I would replace the Raidmax PSU. You could possibly do fine with the Raidmax, but they are much less effecient than other PSUs and considering their defect rate and questionable raitings I wouldn't risk a system you're spending over 1k to it.
You mean 9550's are still 2+2? hmmm...I didnt know that.
the Core2 quads aren't 2 cores plus hyper threading. i don't know where you got that information from or if you are just intentionally trying to mislead someone who doesn't know better. the reason so many rabid fanbois cry about the Core2 quads isnt the misconception your peddling. it is because it is two dual cores linked and sharing the same bus rather than four individual cores. feel free to research it. i wouldn't mislead the misled.
I bought this Q9550 system from Cyberpower little over a month ago...
I highly recommend you read the reviews... especially regarding heat issues as my system ran WAY too hot when i got it. Dont know if those versions have the same issues, but I would definately check into it when you receive whichever you decide on.