I'm happy :)
SFIV's benchmarking put me at an A.
I went from playing City of Heroes at 1280x1024 @ performance (30-60fps) to 1920x1200 @ recommended (50-60fps).
My Windows Experience thingie went from 4.9 to 7.1 for the CPU subsection.
Still doing more "testing," but man... its awesome.
Nicely spent $100 upgrade :D
update:
Mirror's Edge is still at low-res (can't remember what I have it at) but is running MUCH smoother now.
Demigod is went from low-res and low detail to 1920x1200 with most things at medium detail.
I'm dying to put Devil May Cry 4 back on my PC right now! :D