Need Help from a nooby.

I am not at all new to WoW (70 dwarf hunter) but i tried multiboxing with different classes, now, the only thing close to boxing i've done so far was Alt-Tabbing accross my charecters, I am going to play a prot pally and a holy priest, I was wondering how i can cast spells on my priest while on my pally, because It's very hard to Atl-Tab on every heal, are there macros or addons or what? if it's macros what are the macros i need, and if it's addons what addon(s) do i need? And I have a problem with following, I'll set my priest to follow, I'll go a little forward on my pally and I'll stop following, idk if it's lag or im not doing something right or What, And i greatly appreciate all the help! :D

Theres a lot or macros, programs and help available here..... Try the WIKI link above to start and use the search feature here on the forums. You gotta do a little research and you'll find what you need in no time.

Thanks, all i really need though is how to make my priest heal while I'm on my pally though, the rest i have down, not really up to keyclone yet though, I'm not a computer expert and i don't want to spend the 20 dollars, also my computer can't hold more than 2 WoW's at once so, If you can help i would appreciate it :thumbsup: .