Came here to look at something else, but IIRC, University of Michigan in Ann Arbor has one of the best Library Science programs in the country and I THINK you can take those classes online. Do not quote me on this. I know that UofM's Library Science is top notch and that their online classes are as well; I could've sworn the two dovetailed, but maybe I made that up. No idea what tuition will run you though...

Good luck.