To be honest, I would not mind buying a cheap D7 at Craigslist and then customize it the way I want. As a matter of fact that is what I will most likely end up doing sometime soon!
Things that I will probably add if I can find it for $250 or less:
+Brooks saddle
+Marathon supreme tires
+Bullhorn handlebars
+Barend shifter
+TT brake lever
As long as you are not trying to break any speed records I think that these bikes can be "pimped" rather nicely. And the cheaper you get them the more $$$ to customize them. Here's some inspiration:
Have fun!