I have a 70 of every class on various servers which I leveled one by one. With WOTLK coming the thought of getting all of them to 80 is excruciating.

I read up on multiboxing and purchased Keyclone. I only have 2 accounts and would most likely be dualboxing toons to 80 in pairs. My toons are on various servers, so I'm thinking of how to consolidate them.

I am hoping that all you experienced multiboxers would give me advice on which are the best pairs to dual-box level together. I tried out my frost mage and spriest today and it seemed to go pretty well and I "2-shot" most mobs.

These are the pairs that I'm planning on leveling. Any input (or suggestions for combo changes) would be great:

Prot Warrior (my main, so i'll definitely be leveling this first) + Prot Pally - I'm thinking AOE leveling

Enhancement Shaman + Subtlety (or maybe combat) Rogue

Shadow Priest + Frost Mage

Moonkin Druid + Hunter

Warlock + DK (when I finally get him up to 70)