G'evening Clank and welcome to the forums!

your macros look about right.. but you might want to check the macros section for minimap targetting capability (useful for aoe type spells - blizzard, flamestrike, etc)

do you have a macro to push focus change when your main dies? makes life a lot easier. you using keyclone? leader focus change combined with pip swap makes life pretty sweet for a single boxing, multi-instace'r

don't forget to post a pic (with machine specs underneath) in the screen shots section to give us all an idea what you got going on.

g'luck!