you can round robin cast in a macro as well
see the wiki on mage boxing... i'll find you a link in a little bit
I currently run a paladin tank and 3 mages and it can get a bit tricky to move around, i've found that if you ONLY keybind follow and your move backward key(i use x or down arrow) you can get agro with one mage, run THROUGH the mob and back up... this makes it so one mage is facing the back of the mob, and your leader you just spin around and dps from the front dpsing crisscross so to speak. it works well if you spam your targetnearestenemy key and also macro follow to that key... that way every time you target a new enemy your clone is following... then you just hit your x key and he stops following and then use the leader to position the mob where he can hit it:)
gratuitous use of frost nova would work wonders too :D
http://dual-boxing.com/forums/index....threadID=12585
http://www.dual-boxing.com/wiki/inde...ge_Tutorial%29 <-- this link is the good one, learn how to write your round robin macros here!