Which polish to use on metallic finishes?

[beancounter]

For the last five years I have been using Auto-Glym High Definition Wax on my cars (dark coloured metallic/pearl finishes). The tub is running out. I have found it quick and easy to apply and the finish fairly durable - I tend to use it twice per year on each car. Should I buy more of the same or is there now something better available?

[beancounter]

- you are right I am talking about paintwork not metalwork so Autosol wouldn't be a brilliant idea!!!