I bought a 2007 Trek 1500 this September to supplant my 2006 Schwinn Fastback 27 as my main ride for the 2007 Sea Gull Century. Now that the century's over, I've been using my Trek to commute twice a week (20 miles each way in the Northern Virginia/Metro D.C. area cold), and I drive my Schwinn to and from the office (in my car) on Mondays and Fridays to ride around town for lunch/errands/etc. (since it has block pedals and my Trek has clipless pedals).
Neither bike has racks/fenders, but I'm thinking hard about adding them since it was rainy last week (and because my Trek actually has mount-points for a tail-rack on the seat-stays), and carrying stuff in my messenger bag is a drag after about 10 miles...