If are designing software you no doubt realize the importance of usability testing your wireframes, mockups and prototypes. However, most people hear "usability testing" and automatically assume that means a giant effort at a giant cost. Well the geniuses over at Clearleft have a solution called Silverback. The real power is in its simplicity. It allows you to put a user in front of a screen and point and click their way through whatever you put on the screen while it records screen changes, mouse clicks and video of the user.
All that and its only 49.99.
It really begs the question, "Why didn't something like this already exist?"
Unfortunately, for those Windows users, it only runs on the Mac. If you know of something similar for Windows users, feel free to comment.