I'm crafting up a Human Witch to run through a campaign in which he's the only real Arcane Caster in the group. Granted that a lot of his abilities are essentially costless (Hexes, for example), what would a self respecting Witch spend loot on, what would he claim, and what would he need? I don't exactly have a strong grasp of the economy of spellcasters, since I tend to run skill-monkeys, martials, or clerics.
