Burn DVDs using iMovie3, 2 Macs, and Panther (help?)

[Bruce Williams]

I have completed editing a movie in iMovie3 on a B/W g3 400
sytem running Panther. It plays out fine to the DV cam
through firewire.

We need to burn this to DVD-r. At the moment, Toast Titanium
5 is loaded in a different Mac running OS 9.2.2. It has the
superdrive (a Pioneer DVR-A03 DVD) but no firewire.

What choices do I have to accomplish the job? The systems
are linked via ethernet, if that helps me and I don't mind
moving hardware, I just hate to go down the wrong path.

Thanks for sharing your thoughts.