Second iMac as external monitor; Connection via firewire without a deck/cam

Second iMac as an external monitor; Connection by firewire without a deck/camera possible?
I spend a lot of hours to find an answer to the following question, unfortunately without any success:
I’m working with a new iMac (Intel, OS 10.4.11) and Final Cut. Additionally I have an old iMac (G3, OS 10.3.9).
I would like to use the FireWire port to transport a dv video stream from the new iMac/Final Cut to the old one so that the old one can be used as a monitor. So all I want is a software for the old iMac that shows an incoming FireWire dv-stream as a live picture.
I tried vlc, videoviewer, iMovie, Vidi and btv. The problem is always the same: Final Cut (on the new iMac) does not find any FireWire/dv-device nor do all these software on the old iMac find a connection to Final Cut. I think the problem is that both sides are seeking for a device-setup at the FireWire-port on the other side. And none of them sends a signal like „yes I’m here and waiting for a dv-stream“.
Another attempt was ScreenRecycler with VNC-client on the old iMac. Unfortunately on my old iMac Os 10.3.9 is the last possible OS and no vnc client on that system is fast enough to show a video in real time.
I also tried virtualDV from Apples FireWire SDK 20. It works so far, that it claims to be a dv-device (on the old iMac) and so Final Cut at the new iMac says: „okay I’ll deliver you that stream“. The problem now is that virtualDV only can record that stream, not show it in real time.
Is there any solution like virtualDV that shows a live preview and turns the iMac in a FireWire dv-device?
Is there any solution that Final Cut simulates to be a FireWire dv-device itself and that another computer finds that device and understand the dv-stream?
Thank you very much for your help.
Message was edited by: baeumer

Don't think this is possible.
You're better off using a DAC (for example the one made by Canopus) and put your DV in and get a compatible signal out the other end for connection to your monitor.
I don't understand why you would want to go through a computer first, it would be a waste of time and add a huge delay to the signal.
Finally, I wouldn't use a computer monitor as an external display, it would be useless in my experience. Why not just preview on the one you've got by going full screen in FCP? Also using a computer monitor as a preview/output monitor is not a good idea since it's so different from a normal TV and won't show the correct colour space or issues such as flickering and interlace problems, underscan etc etc.
Seems like you're using a sledgehammer to crack a very small nut and that would be to use a DV camera via firewire and then connect up a monitor from that. (again using a convertor box if you have a connection problem.)

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