Well, this is kind of interesting. I managed to hook up my graphics card into my TV capture card and actually recorded video and audio from my desktop. I played a bit of Freedom Force and noticed no slow down at all while it was recording. I'm wondering how it would handle a really high-end game like Crysis.

Unfortunately, even after trying to crank the settings, the end result is pretty fuzzy and far from pristine. Part of the problem is that it's recording from an SVIDEO cable, so I'm sure I'm losing something here, and the maximum resolution is something like 720 x 480. The image is a bit washed out. I suppose it's much better than nothing.

I'm going to keep tinkering for awhile and see if I can get it to look sharper. Even if I record decent 800 x 600 footage, I could do a lot with that.

Edit: Seems to do great when the footage is at full screen 720 x 480 (i.e., Amiga emulation). The recording is a bit too bright and still a bit fuzzy for some reason, but that could perhaps be fixed in post. At any rate, opens up some interesting possibilities for future video captures.