I use Nathan's S-Video adapters on a few Amigas here too, they're the best! I get a flicker-free high resolution Workbench on my LCD TV for a fraction of the price of a scandoubler. I made a video demonstration of the adapter a while ago, browsing the web on the A1200 in 1376 x 536, with a rock steady display:
http://www.youtube.com/watch?v=Kaz6fNpHYIgHere's a photo of my A1200 browsing Amiga.org using this adapter through another LCD TV:
http://www.amiga.org/gallery/index.php?n=3152The only problem is I'm not sure if Nathan has any in stock at the moment, and when people see there's no stock, they leave the site without enquiring when new stock will arrive. This gives the impression that no-one is interested in them, and so there's less chance that a new batch will be made any time soon. What anyone who wants one needs to do is send Nathan an email or sign up on his forum and tell him you're interested in his awesome hardware.