Hi Andy, replacing brake pads is quite involved and potentially dangerous if it goes wrong.
My advice, get a garage to do it.
If your set on DIY, buy a haynes manual, read the hazards section, use ONLY the correct tools, have the correct spares ready before you start and be prepared for the car to be off the road for a few hours.
I have done 100+ brake pads over the years, I have hundreds of tools and I still find myself borrowing the girlfriends car to go buy more tools and other spares that I didn't realise were broken until I take the wheel off. Good luck.
Kind Regards,
Simon.
Friendly Simon.
March 2008