Some of the posts have timelapse recordings attached to them. In case you wanted to give timelapse a try, here is a quick guide to some resources around the web. Please note, timelapse is NOT A REQUIREMENT for posting on lunch crunch, it's just something that's kind of nice to share your process if you wish.
This video shows how to do a timelapse recording in Zbrush:
This video talks about screen capture videos using other software, and how to upload and embed video on lunch crunch.
A list of screen capture resources around the web.
camstudio: (Free for PC). You can download it here:
http://camstudio.org/
Camtasia: ($299 Mac and PC) You can download a trial here:
http://www.techsmith.com/camtasia/
Capture Me. (Free for Mac)
http://www.chimoosoft.com/products/captureme/