I'm also boxing a mage and enchanter.
At 71, I'd go to paw and do ALL the AAs you can with the enchanter. You will never find a easier time to pl the chanter's AAs. It won't be terrible for the mage either at 82. I stayed in paw until the chanter was 75 or so, then things started getting slow. While your there, be sure to buy that anti summed AA we get (not turn-summoned but the other one). Its a small investment that lets you heal your pet enough with your anti-summoned nuke that you won't ever need a merc. Between Paw and Beza (next place your going) it will more than save you time spending the ~20 AAs to max that.
Beza is a great place, everything summoned as well.
When your enchanter starts getting closer to your mage, the pair really clicks. At 82, the enchanter can charm stuff in beza, and watch your dps double.
A few notes about charming with the enchanter -
1. Don't haste it. Breaks aside, it does so much dps that even if you put taunt weapons on the mage pet, the charm pet will keep agro.
2. Practice charming with your enchanter on your own first. Once your good enough to use it with the mage, you'll make people who rolled a bard cry.
3. As for enchanter AAs, get everything defensive. CA/CS maxed, veil of mindshadow, mind over matter, shield block, and armor of wisdom. As well, quick buff is actually a defensive AA for chanters. It lets you cast a rune in half the time.
For more enchanter stuff, check out
http://www.therunes.net/forums/
While the site isn't very active anymore, it's a gold mine for enchanter info