Just plugged in my new GTX 560 Ti tonight. For whatever reason the driver installation was failing immediately, so after a call with EVGA tech support (which was a pleasant surprise, because I was not even on hold at all and spoke with an American immediately) he just told me to try an older driver, which worked out fine. It was funny though, because my power supply is pretty old, about 5 years or so, and he wanted me to check to make sure I had enough power and I was reading off the amperage to him and he thought I was reading the numbers wrong because they were so good. I have an Antec Basiq 550 Plus, and he looked it up on his end, and he was like "Yup, that's right, wow"
But I have to say, I guess my expectations were unusually high and I was expecting it to crush Skyrim, but I used Nvidia's tweak guide to adjust a few things, and it auto-detected at "High" . . . I wanted "Ultra" dammit!!

The graphics didn't really blow me away. I was getting some pretty nasty pop-in with the tree detail, and some of the shrubs on the ground looked like they had a smokey haze around them. I was only getting 30 FPS too
Tomorrow I'll just try to reset the prefs.ini to default and start from scratch and see where that takes me.