IdleAlerts
IdleAlerts plugin lets you move away from your computer when it is busy performing some activity such as an installation or when you are waiting for a remote screen to respond, etc. It is designed to monitor changes to performance counters inside your OS and alert you when the system is ready for your input.
To configure IdleAlerts,
1) Select a counter category and then the counter.
2) Choose the counter value threshold and the time for which the threshold has to stay crossed.
3) Select a sound file to play or a Hotkey to run when the counter value crosses the threshold.

Optionally, you can choose from common templates using the preset dropdown at the top.