I'd like to upgrade my PC and I'm having some trouble deciding. The main thing I'm aiming at is getting a better processor. The one I got now, is a Core 2 Duo with 2.13 Ghz. I'd like to use that one for another rig composed of spare parts. So I was first thinking of buying an i5, but then I'd need to buy another motherboard and new memory. Seeing as I've already bought a few motherboards, I'm not sure I want to change again for the foreseeable future. Besides, this would cost me quite much, considering I'm also going for a SSD drive.
So I was wondering if upgrading from a Core 2 Duo to a Core 2 Quad is still worth it. Will it be able to hold its own for the games of the next 2 years? Won't I miss the advantages of SATA III and DDR3 in the mean time?