If you had an AoE healer (or chain-heal-ftw)... would that help minimize the problem? You could just create another button that dealt with group-wide spells.

Basically what I am "thinking-out-loud" is that you could have these buttons:

Button 1 = DPS one-button macro
Button 2 = Healing macro above
Button 3 = AoE healing macro... same as above, just insert chain-heal or that Priest-saves-all spell (don't have a priest yet).
Buttons 4-= are specific abilities for each toon (taunts/Mage-I-win/tricks-of-the-trade/etc)

Is this a reasonable workaround... or are there better ways to do it?