A tip if you like free stuff... I see that some of the "free" data websites are now flogging the free 2007 TIGER/Line files (SHP format) - I saw one site whoring out the data for $100+ bucks! OR.... you can always simply go to http://www.census.gov/geo/www/tiger/tgrshp2007/tgrshp2007.html for your self and take a few minutes to download these data yourself - sounds like a no-brainer to me! If you want to grab a bunch of data grab yourself gozilla and eat the ftp site while you have lunch!
About the data... The 2007 TIGER/Line Shapefiles contain current geographic areas (boundaries of governmental units as of January 1, 2007) and Census 2000 vintage geography. The shapefiles also contain some additional post January 1, 2007 feature updates reported in the Boundary and Annexation Survey (BAS).
Download the 2007 Tiger/Line SHP files HERE