Im using ISboxer to do AoE damage with mouserepeater on. It works okey. Im getting better at it, but im still slow to cast the aoe as I have to look at the toons window to see where the AoE is going to hit. I end up getting the mobs close to my dps and then just aoe on "myself" making sure the mobs is within the area of damage.

But I have seen some vids where the aoe/mousebroadcast goes really fast.