An author friend on Facebook just posted a link to these people, with a warning for aurhors to avoid.
Here's what you'll find under the COST TO THE AUTHOR tab:
I didn't bother looking further...A&M Services: $7,995.00
Book Trailer Production: $1,000 - $1,500, paid directly to producer (A&M will work with author to develop a script and edit).
Publicity: Paid directly to either 2Dream Productions and/or Ascot Media.