Just an update on my capture situation: I now have 3 capture devices and I've even built a new pc that should be able to handle capturing better than my old one. My plan is to post a few comparison shots between the different capture devices by the end of next week. I have the usb pinnacle hdtv 340e stick, the pci pinnacle pctv stereo card, and the pci-e ATI theater 750 HD card.
I would also like to tap the signal and try to capture before the laserdisc player has a chance to digitize anything. I'll probably try this on the cld-d505 because it's a cheaper player than the cld-hf9g and my soldering skills are questionable so I might end up destroying the PCB if I am unlucky. The laser pickup is basically the same as the more expensive machines anyway. It's just the filtering afterwards that makes the picture look better I think.
I've done a few preliminary tests and the theater 750 hd card looks impressive. Of course the only thing i can compare it to right now is the uber-cheap pinnacle stick I was using. It looks like having a decent capture card really does make a huge difference in the quality of the capture lol.
If anybody has any tips or tricks for capturing feel free to share them :).