I'm going to try riding on of my fixies today. I've gotten back about 75-80% range of motion with my left arm. I might regret this, but it's been raining in the afternoons and, at the moment, this is the only bike I've got with a set of fenders.
Besides, it's beautiful, who wouldn't want to ride that bike?
Update: OK, so I ended up not riding the fixie. There was a minor mechanical issue and I decided that was a sign that I was pushing things. I did ride to campus (mostly) two-handed...ish. It's the small victories sometimes.