I've got a few I'd like to have:

Calfee Custom Bamboo


Serotta Custom Meivici
http://www.serotta.com/meivici_ae/index.html#

Vanilla Custom Steel


And of course Custom Ti to round out the materials (not sure on the builder for that though ).

AND THEN there's the non-roadies:

Waltworks Custom Steel Mountain (yes, I'd probably go single and rigid or I might have him make me a cross bike)


And then there's the ones I own:

Wilier Izoard (not mine in image)


Yeti ASR