Beyond the Amulet of Mighty Fists theres also the Belt of Strength and so forth, and also Greater Magic Fang is a boon to unarmed attacks. Quarterstaff Master feat also gives you some flexibility, allowing you to use a staff one handed whilst keeping one of your hands free just in case you need to use a weapon other then your fists.<br/><br/>Medusa's Wrath is insane if you get your hands on it of an unarmed monk.