Well, until I get my mp3 setup in the car, I listen mostly to the radio: alternative Christian (Thousand Foot Crutch, Newsboys, DC Talk, Sonic Flood, Forty Days, By the Tree, etc.), contemporary Christian (Steven Curtis Chapman, Avalon, Michael W. Smith, Mercy Me, Racheal Lampa, Shaun Groves, etc.), smooth jazz (Boney James, Kenny G, Dave Koz, etc.), and old/new rock (POD, Creed, Staind, The Calling, etc.). You get the point.
As for CD's, it's mostly jazz (Roy Hargrove, Charlie Parker, Miles Davis, even Herb Alpert & TJB) and Christian (Rebecca St. James, Chris Rice, etc.). Additionally, I have a growing mp3 collection waiting to be burned onto CD so I can listen to my library in the SHO. thumbs_u
Basically, I listen to just about everything except for the really hard stuff and country.