Storm Grey - What wax are you using?

Its personal preference, but I use sealants rather than wxes on the lighter coloured cars. I can recommend FK1000P which is relatively cheap, comes in a massive tin, is easy to apply...and two coats gives great durability.
 
Go to vertar.com and get a sample pot of raceglaze 55.

It's only a fiver and they is about a years worth(2 applications).

You will need a cleaner at £15 and if you vote for a car in the car of the month comp ( there is a forum members 200 on there at the moment) you get £5 off.