Definitely get Jamba, and read how to set it up.

Actually leveling guides are counterproductive to some extent. Because, Joana's often has you avoid group quests, which is what you really want to be doing.

Instead, read this thread:

Horde and Alliance Multi Boxing RAF 1-60 Leveling Guide

It gives you everything you need to do JUST the right quests for a RAF group. You skip virtually all collecting quests unless the drop rate is 100% and only a few items are required. It is about as idiot proof as you can get: BIG ARROW POINTING TO WHERE TO GO NEXT, reminders that toon X has to turn in a quest. (You know those turn-ins when the questigiver undergoes some animation and then is unavailable for another turn in for a while so you forget to turn in the quest with the rest of your group.)

It might be worth your while to make toons to be left in capital cities (UC, Org for Horde) for quick transport via summon friend. In fact, the tourguide uses this trick early on to get you from Durotar to the BE starting area... clever trick

If you don't screw around, you can RAF 2 toons to 60 in under 2 days played without breaking a sweat. Ideally, you want to be spending your RAF time leveling up as many toons to 60 as you can stand and use up all your gift levels. Because, after RAF runs out, it will seem so painfully slow you will never want to level again.