so this is definitely a pretty cpu intensive test since you are using medium settings and 1680 res. you do have 9600gt sli right? if so that seems a bit low and I think I could beat that with an E8500 and 192sp gtx260. your 9600gt sli setup shouldnt be too much slower than my 192sp gtx260. I wish you had a gtx260 so we could compare cpus a little more directly though.
I know this isnt really very comparable because of my faster card but I just ran it with E8500@3.8 on all medium at 1680x1050 for the heck of it.
Total Frames: 3584, Total Time: 51.01s
Average Framerate: 70.26
Max. Framerate: 98.82 (Frame:553, 6.67s)
Min. Framerate: 56.47 (Frame:2308, 32.34s)