I am probably in the vast minority here, but I did some minor tweaking and thenused and generally liked the college system of magic from FH.
A short discussion of magic focus devices, i.e. a wizards staff that stores/amplifies spells.
Consider including a discussion on wizards familiars and there effects on spell casting.
And I echo the request for a monetary comparison of wages earned verses product prices.
Likewise the travel times for different modes of travel as mentioned by so many others here.
But most of all a section on fantasy religions, priest spells, and creating mythos and deities.