when I was looking for an ATB style 1'quill with a removable faceplate, the only goodlooking one I saw was the Salsa SUL in ChroMoly but alas it is out of production. the Profile works but looks are.....
the quill adaptor is a good option as it lets you go to a 1 1/8" stem wich gives you more options.
on a different note, are the STI shifters/brakelevers (the flat bars have shimano right?) compatible with your derailleur system?
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk