They've got comfortable positions for my wrists.... And they look sleek

I can't say that I've really researched flat bars - I'm really not on my flat bar bikes long enough to notice a lot of wrists problems with them, but I've heard a lot of good things about the ergon bar trips.

If you think vibrations are contributing to your wrist issues - you can maybe look at getting some of the specialized flat bars that have the "zertz" inserts, they're supposed to dampen vibrations. I have 'em on my commuter... no idea whether they're doing anything. but they don't sell for all that much when they appear on ebay. (but I think they're oversized, so you might have a problem with your quill stem)

You can also get bar end plugs that are supposed to kill vibrations.