Q6600 is like four or five years old, right? You don't want to get an intel unless it is core i7 or the highest end i5s. Only the best AMDs as well, and I don't think that the ones that you listed will qualify.
You will want a decent processor.
No, it is very unwise. Both CPU's make for a system that is slower than 90% of the observations in the PPBM5 Benchmark
It escapes me why you would consider such very weak and outdated CPU's. I agree with Stephen, only consider an i7 CPU but nothing AMD. All AMD based systems, even their latest 8 core systems end up in the lower quartile or even lower and are outclassed by many i7-9xx systems, even though they are a generation old. AMD's are completely left in the dust by SB, SB-E and Ivy based systems.
[moved to hardware forum]
I agree with the responses. Both of those CPUs that you listed are a complete waste of money, especially since they are very slow, old and outdated (and in the case of the entire LGA 775 platform that the Q6600 uses, totally EOL). In fact, both of those CPUs are slower than even a dual-core Sandy Bridge i3 in Premiere Pro CS6.
And I agree with Harm about even the eight-core AMD CPU-based PCs: They have to be massively overclocked just to perform as fast in CS6 as even a slightly overclocked Intel quad-core (without hyperthreading) Sandy or Ivy Bridge i5.