I bought this lightly used on ebay hoping it would work for external monitoring on my Hackintosh, but alas, the beta drivers that are available for mac don't seem to be up to snuff. Would be perfect for someone in a windows environment though.
http://www.blackmagicdesign.com/products/intensity
$150 firm, includes shipping within US, lower 48.
http://www.blackmagicdesign.com/products/intensity
$150 firm, includes shipping within US, lower 48.