@2good4U : I get your point but you didn't understand why blizzard nerfed atk speed. They said it wasn't the high damage you could obtain by stacking atk speed, they're ok with that. But only because when you have high LoH with very high atk spd, that made you overpowered (and because of animation frame bugs). The crit/crit dmg combinason is just great numbers but nothing that make you godlike. Crit / crit dmg seems great for me. If every possibilities to get more damage is nerfed, that wuold be sad :/
@Almex : I would go with set 1 but with ~150 more @ all resists, it should do the job.
Yeah, act 3 is pretty hard for melees but you still can do it without dying 10 times on an elites pack (like you can do on DH with vortex elites). I have, imho, a good but not great gear (1k7 dex, ~650 all resists, 25k hp, 400 LoH, 209% crit dmg, 26% crit chance and around 30k dps) and I did pretty well yesterday from siegebreaker to Azmodan with around 5 deaths and without skipping any elites. I just don't try to kill phase beasts (so OP...) but otherwise, it's harder than farming with DH, i must agree, but not impossible.
I just chose a more aggressive build (like DuriDurlag but with MoE and hard target cause i don't have much armor) and tried to go with a crit + crit dmg gear and it worked surprisely well. So damage is the solution I guess ^^
Good luck and keep trying, monk is a great, fun class