I'm a 60 HC monk in inferno and I have known many fellow 60 monks over the past couple of weeks. Each of them prefers/preferred marginally different builds, some of which, I imagine, will surprise most of you. What we can learn from this, as I will show below, is that the monk can be built with a great amount of variance and still rise unfaltering. What I cannot stress enough, however, is that PASSIVE SPIRIT REGENERATION is KEY to survival while leveling. I have known more monks than I care to count who have fallen due to lack of spirit.
Since Boon of Protection was nerfed, this is how I leveled/ recommend leveling in normal http://us.battle.net/d3/en/calculator/monk#adgTXh!ZcY!abaaaZ
This is in no way a necessary build, while I was leveling I was constantly switching in and out skills such as Blinding Flash and Cyclone Strike to see what worked for the current fight. It is important, however, to always have an OUT, such as Dashing Strike or Tempest Rush (25% movement speed Rune). A little known fact about Dashing Strike is that it allows the monk to escape artificially created walls from Waller Elites as well as Jail's from Jailer enchanted elites.
As a side note, when switching skills, do so in town if you can. Switching in town does not force a cooldown on the ability, while switching outside of town will cause the move to be unusable for an agonizingly long period of time. Similarly, as I and many of my comrades have done often, if you do switch your skill outside of town but need it right away for the next boss fight or what have you, you can leave the game and come back in to reset the cooldown.
In nightmare, conviction aura will no doubt be unlocked for you, which in most cases is a huge boost. If you would rather pick up a different passive talent than Chant of Resonance, I would recommended having at least some sort of passive spirit regen, possibly even from Mantra of healing's Circle of breathing.
In hell, I vaulted through with a spec I was just loling around with and found it to be extremely powerful: http://us.battle.net/d3/en/calculator/monk#bdgjXh!UXY!Zcacbc
Make sure to allow your earth ally to tank all the mobs you would rather not deal with while you let the pesky ones attempt to hit you. You can reach some extremely high dodge numbers with this build and the armor gleaned from Deadly Reach's Keen Eye rune will provide the necessary barrier for all that which manages to get through your lightening fast reflexes. This build, however, is dependent upon you having a weapon and/or a helm that provides spirit regeneration. If you do not have either, then you must replace one of the skills or passives to gain it. With this build you can go extremely defensive and allow backlash to destroy all those around you. As a side note to this, Backlash actually has a small knockback to nearby units which interrupts their actions. This is simply put, awesome.
In inferno, I use the following build to do goblin runs: http://us.battle.net/d3/en/calculator/monk#bcgTXQ!Tcb!cZabbZ
Despite what many people may argue to be an exploit of the game, I strongly urge all those making their way into inferno to run it. Without the items gleaned from the goblin, (whose terminology can be explained with a simple google or twitch search), Inferno is literally impossible for HC, as testament of the top HC players attempt at A2 Inferno last week. Anyone who has made it to Inferno will tell you that the mobs are just to powerful, both in tankyness and damage to be overcome without some serious farming time. Yes, hell mode can give you a good farm, but in order to progress in inferno, you need inferno items and if you cannot kill elites in inferno, you will not progress. It's a bit of a catch 22. Inferno was designed to kill you. It is not player friendly.
For actually killing the goblin, I highly recommend switching to Guiding Light passive and Conviction Aura with Overawe rune. This will increase the damage of your party exponentially, which of course will be low from lack of actual gear (and a preference of MF gear).
For Inferno progression, I know a monk who has managed to down the Butcher on his own-- named Dinglez. He uses this build: http://us.battle.net/d3/en/calculator/monk#aigRXh!TXY!ZYaabc
It is focused, much like the hell build I gave earlier, on dodge. You may note that he does not have One with Everything as a passive. This is because he manages enough All Resistance and stacking of Physical Resistance to negate the necessity of the passive. Furthermore, the use of Near Death Experience has saved him on occasion, specifically when he fought Leoric. He has 500-550 All Resistance and near 650 physical resistance.
As this post is nearing its capacity for characters, I will end here. But I have much more to say on the monk class and if you have any questions or simply want to chat, my name is Severis#1784.