Gotcha! I happened to have lucked out with a Q9450 that was able to OC to a rock solid 4.0GHz, but a Q6600 @ 3GHz would certainly hold you back in this day and age, not to mention all the side technology advancements you're getting. You made a fine choice!
Speaking of AM3+, I remember during the time I had that Q9450 machine, I built my cousin a machine with an x4 620 Athlon II and was able to OC it to 3.41GHz and it was a little budget BEAST! I saw no discernible difference between my C2Q @ 4GHz and that little "low end" quad @ 3.41GHz. I was beyond impressed.
I do like the core 2 cpus they are dependable and to this day are more than enough for your average user.
After i figure out a few things I'll be giving my old build to a good friend of mine who realized he needs more than a core 2 duo laptop for what he does but cannot afford to buy/build a quadcore desktop.
Edited by whitefiretiger, 02 February 2016 - 02:18 PM.