As the title implies, my friend is looking for a cheap and small touch screen monitor for general use on his pc. He's got an HIS 5850 (reference design) for the gpu, so hopefully they're compatible with that. I have no idea what to look for in a touch screen, all I know is that he wants a small one and cheap one. Any suggestions? Also, how do they hook up? Does it just use a standard DVI connection and a USB to transmit the data or is it a special cable?