I tried the 3T Ergonova Team in one bike and *loved* it. Also curious about Cataboo's handlebars.
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I use the fsa k-wings:
http://www.pricepoint.com/detail/205...p=195%20FSAKB0
http://ecx.images-amazon.com/images/...RL._SS500_.jpg
generally, google wing handlebar or ergo. fsa does make a aluminum version.
The drop around where the hoods are, I find really comfortable.
The handlebars on my Cannondale are also flat on top. According to the specs on my bike they are the Cannondale C2 Féminine, Al-7050 Butted. I really like them.