I haven't played in a few years, and 6 boxed when I did, but I'd definitely be concerned with the dps of that trio. You might consider swapping the Guardian for a Shadowknight or Berzerker for added dps, and if you can get a fourth in there, you might find a caster to be easier to multibox than a melee dps. Also, alignments changed I believe, with Troubs and Monks being neutral now. Here's a link to who is good/evil/neutral: http://eq2.zam.com/wiki/Classes_(EQ2)