Atlona AT-HD620 connects your BD/PS3/Xbox to iMac, LED Display (Review)
The Atlona AT-HD620 is basically a converter box for linking an HDMI source to an Apple 27-inch iMac or LED. So essentially you could use your iMac or monitor to view TV/movies and play game from Bluray, Xbox, PS3, or Tivo. The device promises to accept any HDMI input and then output it over Mini DisplayPort. The device also accepts a Mini DisplayPort source and switches between that and HDMI for viewing on an iMac or Apple LED.
You'll need a 27-inch iMac or a 24/27-inch Apple LED monitor to input the signal. The box also offers stereo RCA audio output, in addition to sending audio over the Mini DisplayPort to an iMac.
The box promises to upconvert any HDMI resolution to match the iMac or display resolution.