level 1-60 guide

[kajsks]

Is there any addon that shows you exactly what quest to do / where to grind to get 60 asap?

[traitrus]

Try Vanilla Guide

Also WHDB + Metamap will help you

[Roddan]

You also use http://www.joanasworld.com/azeroth.htm

[Magilicotti]

http://wow-pro.com/wowpro_archive

Particularly James leveling guides. They are extremely detailed. His guides do not include starting zones but they have those if you need.