Some ideas about new classes:
Bard: Class skills are songs, one could demoralize enemies by reducing their damage by 1 (song of demoralize), one could boost hit points (song of bravery)
Monk: Class skills are one kick skill, one fist skill and one skill to improve some stat, maybe damage reduction by 1 for given amount of turns, unarmed damage is 1d6 instead of 1d3 and it grows to 1d8 by level 3 and to 1d10 by level 6.
Druid: One class skill would be shapeshift, probably werebear with increased damage and hit points.