thanx for the link electro. I'm gonna start sifting through all that info and see what I can find.
and yes haldor, I got it mixed up in my last post. I want to take a composite from say a DVD player and output it to a VGA port. I know I can get a device that will do what I need for around $100, I'm just trying to see if I might be able to build something on my own for cheaper.
Take a good look at what doing the up-conversion is going to take. The PCB design is very crucial and the single quantity price for the up-converter chip is pretty high. I seriously doubt if you can DIY something like this for less than $100.