Throw a smooth modifier on it. In the dialogue check the auto smooth box. Collapse the modifier. That should clear it up. If not then manually set your smoothing groups.
When I turn on smooth+highlight render I get this weird smoothing effect that I wouldent notice if I dident have it on. I have no Idea what the problem is. Could it be an issue with the symytry modifier? I fear this may bite me in the butt later if I dont fix it now. Thanks! Uploaded with ImageShack.us
Just select all polys and set SG to 1 from smooth groups section in edit poly and ur done. or you can apply smooth modifier than collapse the stack (make sure u remove symetry first in case u dont want to finalise it).