"Does anybody know which of these congresscritters are good conservative solid citizens, and which are RINO's?"
Bob Beauprez (Colo.), Mike Fitzpatrick (Pa.), Jim Gerlach (Pa.), Marilyn Musgrave (Colo.), Anne Northup (Ky.), Jon Porter (Nev.), Dave Reichert (Wash.), Rick Renzi (Ariz.) and Mike Sodrel (Ind.) are all pretty solid conservatives as far as I know. Rob Simmons (Conn.) and Christopher Shays (Conn.) are RINOs, although Simmons represents a very liberal district that would be almost impossible for a conservative to win and Shays's district wouldn't be easy for a conservative, either.
I'm surprised Mike Rogers (AL), Phil Gingrey (GA), Heather Wilson (NM), Robin Hayes (NC), Chris Chocola (IN), and Shelley Moore Capito (WV) didn't make the list. I think all of them are more potentially vulnerable than Musgrave.
It might be cynical, but I think it has more to do with scaring primary challengers than with scaring the Dems.