SW videogames cutscenes (esp. Rogue Squadron series)

I've used a VCR and camcorder to grab footage and screengrabs from games before.

Just feed your Gamecube's (or whatever system) RCA jacks into your VCR's input and then have the outout flow to the TV, make sure your VCR is set to record from that input source, and then just record what you want to a tape.

Next, take a digital video camera and hook it up to your VCR's output RCA jacks (most cameras should come with some kind of cord that goes from RCA to a small jack in the camera) and record on your camera as the VCR playsbacks the footage.

Lastly just hook up your camera to your computer via a firewire cable and import the footage with whatever video editor you have (iMovie, Final Cut, Premiere, whatever crappy freebie Windows comes with, etc) and edit to your hearts content. Viola! Export and burn to your liking.

Now, there's obviously some quality loss there (though if your good enough, you might be able to rig something directly to your camera with the right number of radio shack adaptors ).

I don't have a DVD recorder yet, so I don't know how well that works- but if it just takes the place of the VCR, you might be able to circumvent the need for a video camera alltogether and just burn it to DVD and rip it to your computer for editing.

(and, if you get a video capture card for your computer, you'd probably circumvent the need for all of that).