iMac DVI in?

[Bad Paper]

Is there a DVI-in port on the iMac, essentially letting you use it as an external monitor for another machine (say, the Macbook mentioned in my .sig)?

I have a PC plus monitor that I want to replace, possibly with an iMac. But I use this monitor as an external monitor for the Macbook occasionally. If I were to get an iMac, I would sell this monitor (24", donchaknow). I doubt the wife would let me keep it around just for kicks.

If there is no DVI-in, then is there a video card upgrade that would allow that setup?

 

[mpshay]

I know this has been asked in the past and the answer was always that it could not be done. However, I was wondering if any new external hardware has come out that would allow this happen. I know there are products out there that allow a monitor to be hocked up to a USB port (great for adding 2nd, 3rd... monitors), but not sure if anything works in the opposite direction (ie send video into the computer via USB or Firewire)