For those of you that have read Martin's books, I am getting ready to run a campaign here for them. A lot of research went into it so the detail should be there.
As both of the rulesets designed for it are D20, and really kind of suckish, I am either going to use RMSS or the Aftermath system. I have worked both out, and the jury is still out as to which I will go with.
If there is any interest, sign on the dotted line.
If he gets enough RM players, he'll run it RMSS/FRP. . . .if you're interested:
http://www.rpgrm.com/rmsmf/index.php?topic=4789.0