My commuting bike, an old Trek hybrid, has flat bars with twist grip shifters. I had bar ends on it for a while, but the bars are too wide and I felt like I didn't have enough control, so I took them off. I'm experiencing a lot of wrist pain with the bars/twist grips so my new commuting bike (that's supposed to be here in a couple of weeks) will have albatross bars and bar end shifters. I'm hoping that the position of my hands with the new bars will make the wrist pain go away.

I would be way too nervous riding drop bars in DC traffic, but I see a lot of people doing it.