Oh, and if you're looking for info on the SHO engraved calipers:
12" kit:
http://shosource.com/catalog/product_info.php?products_id=11&osCsid=bfa769931a109923d785f6711e31f879
13" kit:
http://shosource.com/catalog/product_info.php?cPath=61_23_19&products_id=10
Note that the 12" and 13" SHO Source kits use mustang rotors which have a different offset. If you want to run these calipers on an 11.6" 96+ rotor (which has the SHO offset) you'll have to get new brackets and redrill/grind them per the instructions in the long post. You can not use the 12" SHO Source kit with 11.6 SHO rotors.
If you're looking for just the brackets, the cheapest I've found them is about $85 apiece. They used to be much cheaper but Ford noticed that everyone and their brother was grabbing any old PBR calipers and buying their brackets cheap instead of visiting the Ford parts counter for the full kit.