You are making the right move going to an I7. I haven't played EQ2 yet since my upgrade but the Quad 6600 (3.0 OC) was a real dog with 6 instances. The performance tool in vista/win7 shows my numbers jumping several digits from where the quad was. I haven't done any other testing yet. If you can squeeze in a new video card get one with 1gb ram to help with the 2 monitor setup. I was going to try and get the 6 to run with 6 gb of ram because that offers me the best OC options. If it won't run with 6 I have another 6 ready to install.

Your upgrade package is the hardware I bought minus the ram. We should have very similar game results. :thumbup:

Have fun!!