Farming the Butcher is a cakewalk now, takes about fifteen minutes per run. I go out into Festering Woods and kill Elites and Boss groups in the two tombs and the forest itself, they're almost always really simple to kill, sometimes I can fill my 5 stack of NV in that area alone!
Then I just run through the Halls of Agony and kill the Butcher. Haven't gotten anything really good yet but in three runs I've scraped together about 150-200k including the things I find to sell on the AH and it took about 40-50 minutes tops.
Edit; beat Zoltan Kull, he was real easy as expected. Spellcasting bosses are really shit in Diablo III. I basically only have Belial left but I dread the very thought of even trying right now... I don't expect to have much of a chance at all against him since he removes my main advantage over other mobs; mobility. Anyone else going to try him soon so we can team up? He's gonna one-shot us anyway so might as well be more of us for ressing and killing the damn serpents... 
