A body cleaner and polish?

Having sorted out the best black part of the body renovator I will want to move onto the main body.  Is all it needs is a quick wash or does one need to be more particular?  By that I mean a special cleaner, a sealer, a polish or a wax?

Now I am only joking but this range is a must -

http://www.swissvax.co.uk/

and this in particular...

http://www.swissvax.co.uk/product_detail/wax_products/crystal_rock_state_of_the_art_car_wax_by_paul_Dalton


bit too cheap ?

Ouch!!!