Yes, standard pads are fine for daily road use but if you start pushing it hard you will find that upgraded pads will stop the car better.
Have a look in the TMC motorsport section on the forum.
You will be able to find Pads, lines and fluid in there.
different brake pads vary in price from £50 a pair to £180 a pair, so depends how far you want to go and how heavy you plan on braking..