I know you are looking for plain jane but you should look at the aussie style beds. They have sides that can fold down out of the way for a flat bed that way you can get the best of both worlds and looks neat too. Don't remember who makes them but bob robertson has one over on TDR its pretty slick.
http://www.uteltd.com/ here you go I found the website.
__________________
2006 2500 QC, SB, AT, Icebox, Straight Pipe, Tone Ring Mod, Isspro EGT, Boost &, Tranny temp, Amsoil, 80 gal transfer tank, Pac Brake airbags, Tow mirrors,
Smarty Jr!