There was an interesting article posted on this blog a few weeks ago about using a Motorola Lapdock as a DIY external HDMI display for your DSLR camera. There's a bunch of comments about how to go about doing this here: http://cheesycam.com/lapdock-as-hdmi-monitor/

Currently these Lapdocks are running for about $80 dollars on Amazon (seen here), but if you were curious and wanted to grab one at a better price, today 1saleaday has listed them for $59.99 via eBay (Click Here).

Motorola Lapdock HDMI Display