I agree with Fire's comments. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
I built a Tank Wizard for the up front work <img src="/ubbthreads/images/graemlins/eek.gif" alt="" />
He started off as a wizard but I changed him to a high strength axe wielding tank type with just a single spell (whichever was the most powerful I could find at the time).
The DK followed behind with a powerful bow based ranged attack.
Having the lead guy as a tank/wizard meant that I could swap between two very different types of primary and secondary attack (left and right click) without doing a lot of pausing and fiddling about). Left click for axe, right click for spell.
Mostly it just went "chop.....twang (from the DK behind).... you're dead".
But if we met some tougher opposition then it went "Chop, twang, ouch! chop, twang, ouch!.... Hey, you think you can beat me don't you..... ZAP, splat!.... now you're dead!". <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />