The RNC is supporting him.
Here is spending info for the campaigns:
http://www.opensecrets.org/races/summary.asp?ID=CO06&Cycle=2006
That's a good site. Thanks for the link. I checked on Diane Irey while I was there. She's getting NO! PAC support. Most of her contributions come from individuals. If money counts for anything in politics (pretty funny huh) Murtha will win in a cakewalk.