[Captain Obvious]

I'm pretty new to NWN, but i read a guide somewhere that suggested having one level of fighter first, then one of wizard, then solid cleric.

this gives a bit more grunt for the fighting abilites, and the wizard level lets you choose a familiar. If you take the pixie you have a fairly good lock picker/trap disarmer, and can more easily use someone like Daelan as your henchman.