Fable III was released in October of last year and, somewhat bizarrely, is only now getting a PC port. The good news is that the PC version comes pre-packaged with the contents of the Limited Collector's Edition and all of the DLC packs. The bad news is that the keyboard and mouse controller arrangement is awkward, with particular problems involving camera angles during combat.
While you're manipulating the WASD keys to move your character, you'll also be utilising the mouse to move the camera, so you'll often find the camera is looking the one way you don't need it to. Using a console controller solves this problem, but PC purists will wish the game was better mapped to keyboard and mouse controls.
Otherwise, the game performs well on the PC. You'll need at least an Intel Core 2 Duo 2GHz (though a 2.9GHz is recommended), 2GB RAM, 12 GB free disk space, 256 MB graphics memory and DirectX Version 9.0. It's recommended that you have an Nvidia GTX 260 or ATI 5770 graphics card or better.
On my 3.16 GHz Intel Core 2 Duo machine with an Nvidia GeForce GT 330, I didn't notice any nose diving of the frame rates, even during the more intensive combat sequences. The graphics looked cartoonish but still fairly strong, with some minor clipping.
My only other criticism is that I had to download the game on Games for Windows Live (rather than Steam), and I vastly prefer Steam's digital distribution service for its ease of use, particularly during installation.
If you liked Fable III on Xbox, you'll like it on PC, as it is essentially the same game with a slightly higher level of graphical sheen. If you played it on console the first time around, I'd give it a miss. Still, if you missed out last year, Fable remains a fun and playable action RPG, with a few flaws as pointed out in the original review.