go to chemical guys in cambuslang.davie is a really helpfull chap.i just spent £220 on a whole new kit.top notch stuff.
snow foam the car.
wash it using two bucket method.
dry it.
clay it(you wont believe the differance)
polish.i use klearcote vanilla moose glaze.
wax/sealant
then just all the rest of the usual stuff.wheels.tyres.windows etc.takes a good 5 hours to do but well worth it.