This is basically the standard WW/CM build, but I changed WW to shock pulse/living lightning, which actually seems to work much better. My survivability is great with tons of mobs since I can crit rather well, but on single enemies like bosses I don't do so hot. I think I died about 4 times beating Belial with one other friend.
I have about 20-30Mil that I'm willing to invest in this guy. Specific suggestions for gear changes are really appreciated. TIA