Now that we have the option to record directly from the HDMI output from the Nikon D800 and the Nikon D4 let’s look at a few devices that can monitor and record from the HDMI feed.

Atonomos Ninja ( HDMI )
Records to Apple Prores witch you can edit directly in Final Cut Pro.

Atomos Samurai ( HDMI & SDI )
Records to Apple Prores witch you can edit directly in Final Cut Pro.
http://atomos.com/ 

Sound Devices PIX 220 ( HDMI )

Sound Devices PIX 240 ( HDMI & SDI)

Records to Apple Prores witch you can edit directly in Final Cut Pro.
http://www.sounddevices.com/products/pix.htm