Any type of Wireless Keyboard will work, but for display purposes and own personal preference we'll go with Logitech. (If you have a Wireless setup and it works flawlessly, please post below with Brand and Model)
http://www.logitech.com/index.cfm/pr...ault,viewall=1
http://www.logitech.com/lang/images/0/12115.jpg
From experience the accuracy is what you are looking for when sending a signal to multiple receivers. Also instead of buying a bunch of wireless keyboards, it may be easier to contact the manufacturer and request just receivers to go along with your 1 keyboard and mouse package.
The trick here is to have the exact same model for each PC, and synchronize 1 keyboard to all receivers. This can be done with a mouse as well.
Learning Curve - Easy - Medium
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