The window display for Chelsea men's boutique, Behaviour, is very new-school dandy in a school-boy sort of way.
Designers of the moment, Burkman Bros., are more casual-dandy (is that an oxymoron?), but the twins from Toronto have a great philosophy: they design what they like and what they would wear. Think of it as weekend-wear for dandies.
I just came across a post on The Sunday Best profiling Savile Row clothier E. Tautz. Patrick Grant (pictured left) is the driving force behind the reemergence of the century-old tailoring business (it had been absorbed by Norton & Sons in the '60's). The company images on the web are gorgeous. Very fine and dandy!