Game Cube VGA Cablelondon-boy said:oh shit my TV only has VGA in though... i guess that makes it even harder...
It's a modified component cable. I got one, brilliant IQ. I bought mine here. It was the cheapest shop in Europe, it's also easy to import (mail order) it from HK, but the shipping costs and the tax are ruining the fun.
EDIT: not every GC game is able to output progressive scan, before purchasing software, it's a good idea to check this page: http://hdgames.net/