Sorry, I couldn't recommend anything that still uses 15-pin vga ports. They're so old... Besides, I doubt anyone even manufactures graphics cards that has 3 vga ports. (I checked AMD Radeon's collection and they're all HD, so at most they have only one vga; and then additional dvi or hdmi ports)
I'm trying to find a wireless solution right now. Something like "install software and plug the usb wireless display adapter into your pc; the usb wireless display adapter and it's software relies on your cpu and gpu to scale output resolution to a suitable size based on your network bandwidth; plug the wireless (usb?/Bluetooth?/hdmi?/composite?/vga?/coax?... I have no idea how it would work) receivers into your monitors for awesome wireless multi-display!"
I doubt that a product like that exists, but now I'm interested in it because something like that would be very useful.
Edit: The best I found was WiGig, but it is still in development
Edited by urbanninja, 28 September 2011 - 07:44 PM.