Sherman..
        IMOP, I don't believe there is any panacea called "Pwb Benchmark
   Survey for Servic Bureaus". I can only relate what we have done over 
   the years to obtain "quality" service bureau help when off-loading designs
   during peak workloads. In outline form:
  
   0  Generate a Statement of Work (SOW) to describe your end product
      ( What info you will provide, what you want as deliverables and
        your schedule requirements)
   0  Put together a sample package of "similar to" drawings or equivalent
      package and send it to several sevice bureaus along with the SOW to 
      review.
   0  Met with them to discuss the design/schedule and costs (including
      cost/schedule impact for changes from "out of scope work".  
   O  Then YOUR DESIGNERS discuss the capabilities of the bureaus and
      decide which one/ones are most cost effective to do YOUR TYPE OF DESIGN.
   0  Cost along should never be the driver because YOU WILL pay for it later.
      Your designers should make the make the decision, not the bean counters.
   0  If possible, have multiple suppliers.

        I know this isn't exactly what you want, but only YOU can evaluate
   service bureaus to do YOUR type of designs. If you would like to discuss 
   this issue in more detail, please call. Have a good day.

Bob Vanech                                         Bob
(203) 852-4810