I've got a little bit of everything available.
1. Turbo Grafx 16 complete system:
http://www.flickr.com/photos/7205976@N06/521350090/The catch with this system is that with the original rf adaptor I wasn't able to get anything on the tv. I tried a different rf adaptor and if I wiggle the cable some, I can get the picture up, but it's not always stable. The RF connector onboard might need some soldering or other attention. I was able to get the cable wiggled in the right position long enough to play about 30 minutes of Military Madness, so I know everything works.
I checked ebay and the ac adaptor recently sold for $10 and the game sold for $15. So I'll put it out there for $35 + $10 for Fedex 3-day shipping for everything. I can also include an additional generic rf modulator if desired.
2. Sega Saturn with oval buttons:
http://www.flickr.com/photos/7205976@N06/521350084/The system powers up but it refuses to read any discs. Cables aren't included with this.
Asking $10 + $8 for Fedex 3-day.
3. ICO for PS2:
http://www.flickr.com/photos/7205976@N06/521350108/Everything is included and the game was just recently tested working.
$20 + $5 for Fedex 3-day.
Prices are negotiable.