From tweakguides.com:

"For now, the most important tweak has to do with the fact that VSync is automatically on and can't be disabled from within the game. This not only reduces FPS, it also introduces mouse lag. To disable VSync in Skyrim, add iPresentInterval=0 to the bottom of the [Display] section of the Skyrim.ini file in the \Users\[Username]\My Documents\My Games\Skyrim directory."

I doubt that it'll be too hard on the average PC, but having mouse lag is terrible.

Same guy will release a sure-to-be huge tweak guide for it, too. Seeing teh relatively small game size, I expect some nice high-res  texture mods before too long. The thing i love msot about Bethesda games is that they're mod mod-friendly.

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-- Of all the soles I've ever tasted, his had the most   ....cumin. --