on-the-fly /target macro

[shyrotam]

What is the quickest way I could write the names of enemy targets to a macro?

"/target shamwow
/target bravehearth
/target dischead
/target genericdeth
/target stabstab
/target dumhunter
/target stupidface
/cast stun"

I'd like to prepare this macro at the start of every BG (with BattlegroundTargets I can manually target each enemy from the holding pen).

Also, could the process be automated in any way? And if so can there be any kind of sort function to put healers at the end of the list?

Thanks.