I have a spec me thread here, in which I am proving to be indecisive! 
I currently have an E8400 and I'm looking at the i5 4570S for my new build. A comparison of these can be found here.
Am I making the right choice? Will I see enough of a reduction in power to make the 4570S worthwhile? I play a couple of games, but none that my E8400 can't handle right now. I do play with virtual machines a bit and this is the main cause for upgrading, due to lack of RAM and SATA 3 ports for my SSD.
I hope I can either be reassured or pointed in the right direction.

I currently have an E8400 and I'm looking at the i5 4570S for my new build. A comparison of these can be found here.
Am I making the right choice? Will I see enough of a reduction in power to make the 4570S worthwhile? I play a couple of games, but none that my E8400 can't handle right now. I do play with virtual machines a bit and this is the main cause for upgrading, due to lack of RAM and SATA 3 ports for my SSD.
I hope I can either be reassured or pointed in the right direction.