I did ZF from 40-45 then strat from then on.

The pally boosting me was in pvp epics and was doing it fairly easy. We did the UD side. If you can, pick up all the Runecloth you can. I made over 500g from 50-55 off the runecloth(8g a stack on my server atm). I had TBC on both chars so we went to ramparts at 55-60. Ramparts is good exp and is a good way to get your chars some starter gear for questing.