You said it :-)
http://www.acuratings.org/2005all.htm#PA
ACU RATING OF 92!
And a "C" rating by the Gunowners of America:
http://www.gunowners.org/109srat.htm
And a "73%" from The Club For Growth:
http://www.clubforgrowth.org/2006/07/the_2005_congressional_scoreca_1.php
And then there is the matter of working to elect PRO-ABORTION Arlen Specter....so that he could chair the Judiciary Committee during the term when 2-3 SCOTUS Justices would be nominated/seated....saying of him "He's with us when it counts."