Nah, just add a minor bonus to one, I don't see spellpower being needed but as it's all people seem to think of in relation to int stats in an rpg I just thought I'd mention that as an aside ot get people thinking, funnily enough about intelligence. I do feel the payoff for it is a little bit low at the moment, and even if it was just a small like .25 increase to the same things as perception per point that would help make it a little more appealing.
One example here is sure perception would help you spot the trap, but intelligence would let you stop and say, that area is dodgey as hell, they must have trapped it, you get what I'm saying?