If you have not found the info already, the epic for monks requires that you do the Sash of Order/Headband quests that start in Freeport/Quenos. They are used later for you Robe of the Lost Circle quest, then THAT is used to get the Robe of the Whistling Fists, then THAT is used to get your epic, Celestial Fists...Whew!
There is all kinds of info available online for these quests, just look it up by the item name...
I just started the RotLC quest, and it requires much patience - but the reward is worth the trial :)
Good Luck!