HydraMouse - HydraMouse assigns various actions to the buttons of your mouse, even if it has more than 5 buttons! The actions can be system-wide or application-specific, and can be combined into macros.

KeyCastr - KeyCastr lets you easily display your keystrokes while recording screencasts.

Auto Mouse Mover - Auto Mouse Mover is a software that keeps the user’s computer awake by automatically moving on the screen.

Carnac - A utility to give some insight into how you use your keyboard/

X-Mouse Controls - A tool to enable or disable active window tracking, raising and also the delay in milliseconds.

Key-mon - Utility to show live keyboard and mouse status for teaching and screencasts.