Just yesterday i downloaded the DAVID software and made the first test and i'm very impressed. For the first test i used a Logitech Quizkcam Zoom and a 30€ laser level from a commercial center. You can see the results on the attached images.
Next week i want do more test with a Panasonic videocam, but i'm thinking two more alternatives:
1.- Refrigerate the Quickcam CMOS with a Peltier module and a fan unit to decrease the thermal noise.
2.- Put the laser on a vertical rail moved with a steper motor, take photo with my digital camera on each step, make a video with the photos and send it to the DAVID software through a virtual webcam software like Fake Webcam.
I will publish my results here...