The first one is an amazing thread to read. Seriously, Ualaa hasnt been around recently, but his information is fantastic.
READ IT

the other guides can be found from the links at the top of the page. All good, I picked out a few that pertain to your question and OP.

http://www.dual-boxing.com/showthread.php?t=26231

http://isboxer.com/wiki/WoW:Quick_Start_Guide

http://isboxer.com/index.php/guides/31-guide-quick-setup-fixing-assist-and-follow

http://isboxer.com/index.php/guides/32-guide-wow-ualaa-grid-clique-repeater

http://isboxer.com/index.php/guides/34-wow-video-tovya-interact