Hello Jaggy,

I am in the UK and have been using David Manners Jaguar Parts. The big
advantage is that you can put in a part number and the web site returns the
expensive jag part, together with the sensible price pattern part.

Just having a brief look this morning I came across some rear brake pads
with part number c11247 at ?34.66+vat.

You will need to contact them to confirm postage costs to the States.

Their web page address is :- http://www.jagspares.co.uk/Manners/company.asp

Best of luck

Stu

Jaggy,
  Nearly every parts store will carry or can get them. I like these guys
http://www.northeastbritishparts.com/.sc/ms/cat/1102897898564615/9/nc/Jaguar
%20S%20type%20parts--brakes

They have the rears for under $50 and the fronts for the Brembos for $90 -
$130. From what I can tell you only need the special Brembo pads for the
front.   Call them to make sure you are getting what you need. I have dealt
with them on my XJ40 and they are pretty good.

Webserve