One of the topics raised in the comments on monks was whether the fighting-monk was appropriate. Another, lesser, objection was to the issue of monks having thief skills, since that doesn't seem to fit either the Eastern or Western image of monks. A couple thief skills might make a little sense, if you really elaborate on the idea of a fighting-monk practicing movement and awareness skills (stealth, climbing, hear noise.) But sleight of hand is a little more of a stretch, and removing traps doesn't fit at all.
But the monk as a subclass of thief isn't that bad of an idea, in my opinion. You could use the normal thief progression, drop the un-monklike thief skills, and add a few other skills to create a mundane monk. Mystical abilities would be acquired through play rather than as a property of the class, as I suggested before. It would make a good alternative.
On the other hand, the monk as weapons and unarmed combat master seems to me a bit useless, because you could just re-skin the fighter. A fighter can be a gladiator, a knight, or a yeoman archer, so why not a fighting monk as well? If need be, you could make it a fighter subclass, similar to the way I suggested handling the paladin: in exchange for meeting a minimum score requirement, lowering the chances of bonus XP, and following a certain regimen, an otherwise ordinary fighter can be trained as a fighting monk.