There are keyboards out there that support more than 3 keys at once (for example the Gigabyte GK-K8000 which has support for 'n-key rollover'). http://en.wikip

There are keyboards out there that support more than 3 keys at once (for example the Gigabyte GK-K8000 which has support for 'n-key rollover'). http://en.wikipedia.org/wiki/Rollover_(key) http://en.wikipedia.org/wiki/Rollover_(key) http://www.gigabyte-usa.com/Products/Keyboard/Products_Overview.aspx?ProductID=2789&ProductName=GK-K8000 http://www.gigabyte-usa.com/Products/Keyboard/Products_Overv...