I currently own main sig rig with an Intel i7 950 CPU. I'm planning on building a second gaming rig for the kids. Either a i5 2500K or i7 2600K. I'm wondering should I switch the i7 950 for either of those two? The i5 2500K seems to be as good i7 2600K for gaming but adds hyper threading for applications at $100 more. Is it really worth it? Would the i5 2500K be better than the i7 950? Would the i7 2600K be better than the i7 950? I'm just not sure. Any suggestions or comments?