Hi
Not really an answer to your question, but if you have to replace the discs and pads anyway you could take the opportunity to slightly upgrade the front discs and pads by replacing them with Mk3 Mondeo Calipers or Focus ST170 Calipers. With either caliper use Focus ST170 discs.
If u need more info do a search, plenty of info and pics somewhere.
I'm sure someone will give u a list of other things to check and or replace.