If Amazon could detect Mac address I would have been in done a long time ago. I only change mac as a method to change IP.
As for the fingerprinting...
It's so easy to permanently set different user agent strings (timezone, OS, browser version & resolution), block plugin & font detection with a firefox plugin for each account that I just do it anyway.
With the above + separate windows user or virtual sandbox (sandboxie) = Instant new computer 
Last edited by Mr. Invisible; 04-02-2013 at 09:30 AM.
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