Here's the old 2-speed Le Tour 650B conversion that I was using for the winter. It's going to become a 5 speed later this year.
For the summer I'm riding a Velo Sport Prestige. I swapped out the 27" wheels for 700x28c in order to fit fenders. I can't get enough of this bike, but it could really use wider tires for handling all the potholes.
Finally, I've got a recently acquired Bianchi Nyala that I can lose without feeling too badly about it. I use this to get to trail runs or anytime that I need to leave it unattended for quite a while. The frame came cheap from a local bike shop, and I put it together with spare parts. Don't let the photo fool you. It looks nicely beat up in person.