Having seen your post out here for a few days, wanted to follow up and see about pointing you in the right direction for your search. Unfortunately, this found its way to the Knoxville, Tennessee section of Trulia Voices - and never having had the pleasure to make it to your Knoxville, I'd be *no* help to you at all (grin).
Below is an excellent agent that is very familiar with some rental opportunities in Galesburg and Knoxville and where you can turn for specific help:
Judy Gorham, CRS,GRI,Broker Associate
Mel Foster Co
816 North Henderson
Galesburg, IL 61401