non-combat quests are few and far between - i can't think of more than a hand full at the beginning of the game and some of those require combat to get to the non-combat solution to the quest (deliberately vague there).
Where exactly are you in the game, and what have you done?
You might have to temporarily import an NPC fighter into your party to handle combat for a while .. it will slow down your advancement a little but it wouldn't be too bad
Oh wait! Depending on how much cash you have, BUY MAGE SCROLLS and memorize spells - as many as you can afford to buy!!!!! You get xp when you learn a new spell - its 1000 xp per spell level if I remember right! If you don't have a thief, rent an NPC thief and go around town and detect traps and pick locks! you get xp for disarming traps and opening locks! Okay its kind of cheesy, but would you rather fight a vampire with a quarterstaff and magic missiles????
