This will only help out those who live in the United States, but I wanted to share this with you all...

A friend of mine found a bunch of Madness Gameware Dreamcast VGA Boxes that were for an event he was doing, but they got lost amongst all the other stuff that was going on. He recently found them and he's selling them off, and the entire proceeds go torwards the Childs Play Chairity. Each VGA Box is only $30 which seeing what most go for on Ebay is a great deal. So if you live in the states, here is a link

Sega Dreamcast VGA adapter - VGA, S-Video output - proceeds go to charity | eBay