I've been working (in my very limited spare time) on coming up with homebrew rules for Codex Alera using D&D 3.5 as the core rules.  It's going pretty slowly though, since there's a lot of things about the system that need changed to make it match the books.

Ewww not 3.5... no good way for the spell system to fit the complexity of Aleran furycrafting.  Unless you mesh the non casting classes and develop a system to run along side the classes.  Nah I think a skill based system like white wolf or Gurps would be way eaiser than totally rewriting 3.5 D20...  Though it would be interesting.

Just wondering if anyone was kicking around ideas for a Codex tabletop RPG?  My gaming group and I are figuring to make a homebrewed D10 system along the line of the White Wolf Aeon Trinity system for it when book 6 is done.  But would love if someone did the work for us