New to Dual-Boxing - Class Combinations

About a month ago, my WoW main account got hacked. Fortunately, a guildy had an unused key for me, so I have one account. I've started leveling a shaman and hes level 26 now.

But with the new RAF bonuses, I'm seriously considering making a second linked account.

I'm going to make the first a warlock, and for the other I have to choose between a pally, druid, priest, and mage.

If I were to roll with a pally, priest, or druid (feral or balance, I can't decide), I'd probably use that as my master character and the warlock as a slave in affliction. With the pally and druid, since they're melee based, I'd have to use them as the master.

For the priest, I'd want more control over my heals. I'd make macros on the lock to send in pet (voidwalker) and make a castsequence to dot things up. By the time the castsequence is over, the mob should be dead.

With the mage, I'd have it spec frost and use it as the slave, so I could micro more with the warlock.

Right now I'm leaning towards rolling with a druid. Is there anything I missed or anything else I should know?

It would depend what your ultimate goal would be. if all you want to do is PvE then you could really roll anything. For PvP i would suggest a healer that isn't so squishy. So a druid or pally would be a better option. I might suggest the druid for the hots and the 3 cc spells the druid posses. If you are going PvE you might want to look into the Mage. (ports are nice but i guess it is personal preference).
http://www.dual-boxing.com/wiki/inde...s_Combinations
http://www.dual-boxing.com/wiki/inde...s_Combinations

Alright, I think I decided. I'm going to make a druid on the same account as the Shammy and Warlock on my new account.

When the Druid reaches level 26, I'll start dualboxing my shaman and warlock instead of the druid. The warlock will still act as a slave, and both Shaman and Druids level melee spec, so it shouldn't be too much different in that aspect.

I'm sure a squishy healer has its benefits, but I'd rather have a mail-wearing healer if possible. Theres more room for error.