A dealer will fit OE parts. An independant serivice centre could fit OE or anything else, you'll need to ask. Australian / Japanese cars typically don't get much rotor wear, but European cars are often designed for the rotors to be consumable items (and are usually priced reasonably). Brake pad material is black magic and you'll get a different opiniuon for each person you ask. If you like them the way they are, then I'd stick to OE. Most manufacturers have become more competitive in their parts pricing in recent years.

Doug