Check out this site:

http://metku.net/index.html?path=mods/shinyshuttle/index_eng

This is a good review/how to of mirror finishing an anodized aluminum case, which from the before picture looks like the same aluminum that Apple is using.  I'm thinking about iTablet-ing (yes, that's a verb) my 12" albook after I graduate next summer, and I think I'll probably use this polishing stuff for that extra coolness factor.
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15" MBP late 2008