I have started.....

So I have taken the plunge and started to dual boxing, Well dual boxing on two computers.
Both computers are capable of that. I am using Hotkeynet. Wich was fairly easy to set up.
Right now I am just running 4 instances and loving it. I have 4 mages running now, just to test this out. Now I am going to go and switch to the shamans.

What I have now is I have 2 accounts already active with WOTLK on both now if I wanted to get the RAF on all 4 I figure I will have to go something like this. Please let me know If I am wrong.

Account A links to New Account C
Account B links to New Account D

Or would I have to purchase 3 new accounts to link them all.

And my last question (for Now) How would I get Mage aoe to work with hotkeys if i have all the but the main window and I cant seem to figure out the mouse issue but that is something I can work on.

When you want to use RAF, the accounts you are recruiting have to be new accounts. The person you are recruiting needs to input a "Game Key" from the email that gets sent to them.

Solution:

Buy 3 new accounts A,B,C

Your Original Account recruits A
A recruits B
B recruits C

Cost = 3 x Original Game + 3 x Expansion TBC

OFC, use the RAF codes and then upgrade them

Buying two accounts would work unless you use account A to boost the others. Without A leveling a new toon with B, B would not get 3x bonus. Depends on what you want to end up with.