Get yourself some tar spot remover mate, you'll really notice the difference round the wheel arches and bottom half of the car - especially if your going to the trouble of claying. 
will do cheers mate, its first time attempting to detail so i knew i would be missing a few things!
have you got yourself a nice wax to protect your handwork once its all shiny?
same answer as above fella any recommendation's as i guess the resin is for after waxing! shall i stick with auto glym or get diffrent product?