I've had several frames powdercoated by Long Beach Custom Fabricating, a one-man shop in Plymouth, MA. Scott now charges $85 for bead blast and single color coat. I've been very pleased with the result though lug shorelines are definitely not as crisp as with conventional painting. Some examples:

Gloss black St. Etienne:


Orange Univega Competizione:


My wife's Raleigh Marathon Mixte:


A Miyata 610 in red:


My Norman Fay English tourer in copper:


A candy blue Schwinn Super Sport:


1983 Trek 412:


Neal