I agree with the suggestion to use bullhorns. I've got horns on one of my bikes, and I love them. Their only drawback is that you have nowhere to hide (eg, the drops) on really windy days, but they would be much better than flat bars in that regard. For some reason, bullhorns just make a bike more fun to ride. I can't explain it, but my bullhorn bike is my favorite bike to ride for shorter distances (less than 30 mi), and it's just as fast as my drop-bar bikes unless it's really windy.