What is the best product, shop bought or own recipe for polishing a harley bike to it is gleeming?

I have seen the bikes in the shop and they are so shiny, they look wet but they are not . anyone know what it is that makes them so shiny? we going to feungirola next month for european hog rally and want our bike to look the best it can. we have a dual coloured ultra classic of cobalt blue and pewter.
Answer
I totally agree with achrimsdale. i too use autoglym super resin polish and autoglym high gloss finish. used in that order the finish on the paintwork is just phenomenal. as for the chrome and other metals then i would use autosol and a toothbrush, then clean off with a cloth. if you need to get oil or grease off of anything then the orange hand cleaning wipes are superb. they take off even old stuff easily and do not damage anything. the autoglym products that i mentioned work a treat on your crash helmet visor too. mine stays water repellent for months after an application.