I would aim for a minimum of 200 CHA (with self buffs). Once you get to level 50 go for 205 CHA (unbuffed) and by the time you're 56 you'll be at max CHA buffed.
Maximize HP/STA/AC after CHA. Most enchanters say to focus on HP/STA items, however, AC affects how much and how hard you get hit.
Higher AC = you get hit less = less spell casting interrupts = you live longer.
Keep in mind that at level 60:
1 STA = 2.4 HP
1 AC ~ 2.4-3.0 HP (This is based of Lorain's testing)
Aim for 200 INT, and one you hit 200 int aim for +mana items.
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