i tend to agree with soth here! three fighers a mage a theif and one cleric (preferably yourself)! haha. but of course, imoen has been totally ripped off by being dualled-i like pure classes, and would have preferred her to remain a straight theif, so you lose out unless you have jan jansen for high level theif abilities. your party sounds fine, overall to me.
you may find anomen a better cleric than viconia due to the reputation issue.. looks like you are not evil.
he has higher str too, and wont interfere in your jaheria romance.