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pageoneresults - 1:29 pm on Jun 29, 2011 (gmt 0)
[edited by: pageoneresults at 2:02 pm (utc) on Jun 29, 2011]
I'd still probably prefer using a 200, adding a note to the original content and then include a LINK to that alternate page. It holds a lot less potential for search engine havoc.
And, you'll be passing value to the alternate page in the process. ;)