By the way, something has always annoyed me about spell progression:
0-level spell slots don't benefit from a high casting Attribute.
Could we fix that? The logical progression would be that a caster gets an extra 0-level slot when the Attribute in question is 10, and an extra 0-level slot for each additional 8 points in that Attribute.
And, while I'm proposing houserules, can we say that an inherent increase in Int provides retroactive skill points where appropriate? (Maybe gained on level-up?)
And speaking of level-up, is it going to be an MMORPG ding!, or will we need to find some downtime? If the second(which I'm in favor of for spellcasters, I can see the physical types going the other way), I'd prefer that xp continue to accrue.
And an observation about combat - it tends to be slow in forum gaming, so I suggest everyone try to plan ahead what their character is doing, providing if...then statements to cover how a PC reacts to potential changes in the combat. With practice and experience, this makes it possible to run 5 or more rounds every day.