Kevin,

  We get our masks made by Adtek. They charge $ 250 US ($ 380 CND) for a
5" mask. Their address and phone number are:
    Adteck Photomask
    4950 Fisher Street
    Montreal Quebec Canada
    H4T 1J6
    (514) 737 7030
     514 737 9893 (fax)
     info@adteckphotomask.com

  Ken Westra
  MicroFab at the University of Alberta