Well I just downloaded the latest version of Hugin so hopefully this weekend I'll have some time to try out the exposure adjustments. The software is still under beta testing but looks to be fairly stable and why not try it out, worse case I submit some input. Unfortunately I was stupid and didn't realize that referenced Aperture files shouldn't be edited. Oops, that'll teach me to reference files. I'll probably spend Saturday reconstructing my aperture library seeing how I've come down with a cold.