Ubuntu: Recording a Tutorial

Hello. I wasn’t sure where to post this, so I am posting here. Their are a few video tutorials I want to record, but I am unsure how to. I have two programs on my machine, xvidcap, and istanbul screen recorder. Xvidcap works, but it doesn’t seem to work well with blender. The 3d window doesnt seem to redraw. So, really my two questions are
1)What is the best way to record a video tutorial in blender
2)Is their a way to get the video to zoom in on an area, and follow the mouse

Thanks
Bruce