Anyone have a source for factory shop manuals? Would I be better off to just buy from the parts deparment at the local dealer? online?

I know you can find them on E-bay most of the time, but a dealer is probably as good of a bet. Sometimes auto parts stores will carry them, but often the have more selection in older models and American makes.

I just ordered a Helm's manual for my 2003 Odyssey. Check this link.
http://www.helminc.com/helm/search_service_owner.asp?Style=&class%5F2=AHM&mscsid=1EH3TE8DQPEG9G2URAW4X4B41EMUEMN9

Just got mine from Helm Inc. Took about 3 days!!!

I got the Service Manual and Electrical Troubleshooting Manual. Dont get any of the others listed.