I currently have a Core 2 Duo E6600 with a Intel BX2 motherboard. Also 4GB of RAM. Would it be worth upgrading to a Quad Core setup? I do quite a bit of graphics/3D work (not much gaming) so I think i might see a benefit, but I'm not sure. I would actually plan on keeping my RAM, assuming it was compatible (Team DDR2 PC2-6400 Xtreem Micron 4-4-4-10). Not sure what my current CPU and MBD are worth if I was going to sell them? Any advice?