did the coregrafx 2 fall through?
No, those are sold out. I just have a couple of white PCEs now.
Re. video amps. The transistor mod commonly recommended on the web (the one on gamesx) ie. the most common transistor mod done by people online has jailbar issues. I am fully aware a video IC amp is a combination of components ie. reduces components neeed. I have tried several video amp ICs and the one I use now is better quality than any other, including the basic transistor mod. Obviously this could be replicated broken down into simpler parts but a lot more time spent=more cost to buyers and I don't think the quality can be improved on at any rate. The NJM2267 is a really nice video amp IC which is very popular with Japanese modders. I saw ghosting effects and jailbars with other ICs. Doujindance on eBay uses it too.
The other good video amps I tried were based on Sony CXA ICs but those are hard to get hold of. Worthwhile for the s-video out if people want it, but most people these days only want the RGB.
I feel the NJM2267 produces the best picture, the other bonus is the SMT version fits inside a standard SCART which means you can externalise the amp. As seen in the video. This enables another thing I sell which is a kit to allow easy DIY installation of the RGB amp for buyers.