Most games I run an fps of 50-65, except Skyrim x.x
Processor: Intel Core 2 CPU 6600 2.40GHz (2 CPUs), ~2.4GHz
Memory: 4096 MB RAM
NVIDIA GeForce 8600 GTS, approx. total memory 2031 MB
Display Mode: 1680x1050 (32-bit) (60hz)
Monitor: Generic PnP Monitor

The game is broken and needs a patch.

What happens at a somewhat lower screen resolution?

GTS8600 is a pretty weak card. Isn't the minimum like 8800GTX or thereabouts?

Honestly, the game is terribly optimized for PC. Certain people have great performance, while others with computers that should be able to run it on the same level are stuck with 25fps in small settlements like Riverwood. The GPU manufacturers need to come out with new drivers like they did for BF3, and Bethesda needs to patch it.

Though your machine is on the low-end, many others are having terrible performance problems.

http://www.gamesas.com/index.php?/topic/1246287-pc-specs-released/page__st__60__gopid__19174940#entry19174940

The official minimum is total and complete nonsense. It's totally meaningless. Here's a "practical" reference, although it needs plenty of adjustment now that the game is loose in the world:

http://www.gamesas.com/index.php?/topic/1254956-unofficial-will-my-pc-run-skyrim-thread-53-w-hardware-guide/page__st__140__gopid__19176108#entry19176108

i hsve a q6600 @3ghz (quad)

what i would do in your shoes is start with OCing your CPU slightly. even at 3Ghz all my cores are being utliized over 50% (quadcore)
your ram is fine. although your graphics is not crash hot.

although i hate when games post min requirements they are soooo misleading and personally i think min requirements should be recommended specs becuase quite frankly for skyrim atleast the min specs werent tested. i dont see how a 2.0Ghz dual core CPU could run skyrim. a quad 2.0 might on the other hand.