For a simple 2 to 1 DVI switcher, the only two I could find are the Gefen DVI-7500, which Gefen sells for $450, and the Dr.Bott MoniSwitch ADC, which Dr. Bott sells for $300.
The Bott comes w/DVI cables, and one poster in the RPTV forum said it created some sort of digital artifacts/sparkling, but he didn't know if the unit was defective. Mr. Wigggles reports no problems with his Gefen. The Bott has manual swiching, and the Gefen automatic, I believe.
Does anyone know of any other 2x1 DVI switchers, or have ant experience with these two?