How do you refurb wheels??

Can anybody tell me if there is a how to on refurbishing old wheels I have a set of 14" scala wheels ( I think that what they are called) but they are all odd and scratched. I would like to polish them up a bit.

there are quite a few howto's off google;

http://www.v6z24.com/howto/polishing

http://www.englishcustompolishing.com/usca/aluminum1.html

This might be more what you're after.

Cheers for those. All very helpful, give me something to do while Im sat at home with a naffed leg.