I've used Noltes several times. Their prices seem to run slightly cheaper than farm&fleet. I've never got bad service from them.
Most car repairs shops won't put a part you brought in on for you! This is because if that part breaks under warranty, the repair shop has to fix it for free. They get a slight discount on parts, and that makes up for the service they do of bad parts. If you bring in a part, they do not see any discount, and they are still required to repair it. It just doesn't make sense for them put parts on they didn't purchase! Also, there's no guaranty that you brought in the correct part, so they would have to put the extra time and effort in verifying the part is correct and not broke. If you are going to bring your car to a repair shop, don't try to save money by buying the parts yourself.
I did wish Noltes opened up a shop on the South side of Oshkosh, or atleast closer to the highway. It is out of the way for us south-siders... :)