I have a duo-DK team that is 80 now. Boxing with melee is definately doable and fun.

I also have a lvl 80 lock and lvl 71 rogue that keep giving me sad puppy eyes when I login to play my DKs. This weekend I plan to team the lock and the rogue up to farm leathers (rogue), greens to DE, and cloths (lock). I will have the lock be the leader but with a Felguard tanking, and have the rouge on follow/assist. I see encounters going like this:

Each number could be a press of the spammable macro/broadcasting key

1. Send FG and start Shadowbolt/Haunt on lock. Stealth the rogue.

2. FG taunt skill. Lock drops 2-3 DoTs. Rogue shadowsteps.

3. Lock starts drain (for Hp or shard) or starts health funnel to heal FG. Rogue backstabs the hell outta the mob.

4. Change target and let DoTs finish the mob off.