It's 2015, and increasingly, ADB keyboards and mice are becoming rarer to find, more expensive and, sadly, in increasingly poor condition. With the abundance of USB keyboards on the market, it would be nice to have the opportunity to use a relatively inexpensive, easily accessible USB keyboard on my old Macs. Has there ever been any attempt to create a USB (female) to ADB (male) converter? Or perhaps a PS/2 to ADB converter? Is this an engineering impossibility, or might there be some hope with a bit of effort? Thanks!