2004 Diamondback Outlook (I use it more as a commuter that I can offroad as well)
Serfas Rx seat
Half-clips/alloy pedals
Serfas Drifter tires w/ tire liners (the tires have some built in as well...I'm paranoid like that)
Avenir cushion grips (still trying them...might go back to stock though)

It's a somewhat heavy bike, but it does it's job pretty well...I am considering getting a nicer rear derailer as well....I have to figure out what works with that weird 7-sprocket "mega-range" cassette in the back though.