James guides are good, just skip the collection quests. You could easily do with just Questhelper though and maybe read some guides and note some escort and "dropped item" starter quests.

With the XP changes in BC, I only had to do the quests in Hellfire and Nagrand to hit 70, both of which have decent gear upgrades. I also ran instances, which you should do as a multiboxer to learn how it's done [and for the XP/gear]. There is a world of difference between PVE questing and doing instances. I was planning on doing SMV and Netherstorm but just ended up buying WoTLK and going to Howling Fjord.