I don't understand everyone's fascination with wireless keyboards. A wireless mouse, yep, I have two.
The keyboard is a stationary device, why does it have to be wireless? I use an illuminated keyboard with my mac, so I don't have to keep a light on my room. A wireless illuminated keyboard is hard on batteries.
On occasion, I have lost the bluetooth connection my mouse, and I need to use a wired mouse to restore it. A wireless keyboard IMO, would make the process that much harder.
Also, when starting up, if you want to use a keyboard command to change the StartUp Disk, you would be out of luck with a Wireless device.
With that being said, I have used a wireless keyboard, when I had an iPad, without incident, but for my Mac Pro, I prefer a wired illuminated keyboard with a numeric keypad
Lou