I went ahead and tried setting up a focus system, using /focus on my main, and [target=focustarget], and have had great success. Now I simply make everyone use the same macro's, which look to see if they have a target, and if they don't it fires on the focustarget.

#showtooltip
/cast [mod:alt] Purge; [mod:ctrl,exists,harm,nodead] Chain Lightning;[mod:ctrl,target=focustarget,exists,harm,nodead] Chain Lightning; [exists,harm,nodead] Lightning Bolt; [target=focustarget,exists,harm,nodead] Lightning Bolt
/startattack

Got to say it's much quicker, more streamlined, and effective when it comes down to it, and i'm glad I put the time into reworking it.