also i’m lookink for a decent grafics card with three vga outputs that
is affordable without being vorstand der deutschen bank?
we actually used a matrox parhelia to convince the vorstand of the badische anilin at their jahreshauptversammlung. while amazingly slow and somehow pricey (500 eur) it is the only solution to get three video outputs from the same card and it works with the current vvvv release in span-mode. you might be able to overlay multiple videos with the parhelia, but dont expect a good 3d performance or shader effects with this card.
i am aware of no ati or nvidia based solutions with more than two outputs from the same chip. i am also not aware of any motherboard with multiple agp slots. while you can plug multiple pci cards into the same motherboard to get many vga outputs, i´d try to avoid it as the pci bus is inherently slow. anyway it should be fast enough for video playback, but it is a bottleneck-
for a new system i´d recommend getting a board with two pci express slots and two dualhead cards - check the compatibility charts - not every card will work with every motherboard. and expect to wait for the next release to get multi-adapter multi-head support in vvvv
controlling small self-made electronic gimmix
check the Connecting Things section on the Documentation page. make sure to get a motherboard with serial ports.