Heh, every few months one of these Q6600 threads pop up and I end up saying the same thing

. None of the games I play are having a problem with my Q6600@3GHz + GTX470, so there is really no need for me to upgrade. For example, I just started playing Skyrim, with all on high 4xAA and 4xAF and I get 38-42FPS which is more than enough for me. I can also play Assassin's Creed Revelations on full and it's nice and smooth (haven't checked FPS yet though). These games are going to take me ages to finish, so there is no point for me to upgrade. The biggest improvement, like many have said, is to just get an SSD (or 2).
I don't see any must have games coming up which will push PCs like Crysis did either. The only one I am really looking forward to is Bioshock:Infinite anyway, and I believe that is on some version of the UE3 engine (looks like it), so should run fine on my PC.