http://www.wowwiki.com/UI_Beginners_Guide

WIKI WIKI WIKI!

wow.curse.com
files.wowace.com

doh.

froz3noob, just a question, not to be insulting.

Have you tried reading through the WoW official website for information? That site has a lot of the information to majority of the questions that you're now currently requesting. It's also has good links to Classes and Professions information that can be found from Fansites or the WoW Forums (US + Europe). You probably can't find shortcut information from us because we'll probably type out the same information in the same amount of time.

You'll find that WoW is a game that needs a player to spend a lot of time looking up stuff and researching. And quite a lot of that will be on your own. If you're lucky, you'll be able to find a friendly leveling guild which helps one another to level up. Although in most cases, that's not always the case.

The sad bit about playing WoW is like it's going back to school to study study study. Because that's what we end up doing at level 70, by studying combatlogs, studying what other people experienced and post up and studying about what is going to come into the next patch.