This is my "vintage" commuter:
It was my dad's commuter but he doesn't ride anymore. I bought it for him when I got my first real job (actually he told me that I "owed" him a bike so I got him this). I build the bike up from parts I had lying in my parts bin so it's pretty eclectic (including a stronglight 93 crank with a stronglight threaded BB), sealed suntour cyclone hubs, shimano 105 derailleurs, and some cheesy cantis that I need to replace one of these days. I love 26 x 1.5 tires for commuting.