I like all of this but its going to be an awful big PHB!Ideally I want multiple magic using classes, each with their own unique yet balanced sub-system that doesn't overshadow non-casting classes.
I want all classes to have some at-will magic, so even if there are Vancian wizards they never have to resort to a crossbow.
I also prefer non-charged items. I prefer wands that mages use more like swords. Implements that make them better casters, not like guns where they fire off a preset number of "loaded" spells and then it crumbles to dust. But I have no problem if both types co-exist.