Originally Posted by
revcp
It will require a shorter stem, but you'll keep the advantages of a more mtb bar, have the advantage of multiple hand positions, and be able to go semi aero. There are even attachments available that will allow you to go fully aero.
Another option is Surly Moloko bars. I recently installed them on my Project-3 and really dig the hand options. The position up top feels quite a bit like riding on the hoods of a drop bar.