My goodness. These are some wonderful changes you've made, especially to the sorcerer. It's my favorite class, but it didn't really feel like anything other than a less powerful wizard. This, coupled with the varient in the Complete Book of Eldritch Might, would make the class that is awsome in it's own right.

I do have one question though. Would it be too much of a stretch to allow the sorcerer to use his cantrips at will? And even 1st and 2nd level spells at higher levels?