I don't have alot of time each day to film during class. Therefore I had to come up with equipment that would be reliable and work well with very little hassle. After several years of experimenting with different types of microphones, video cameras and other equipment. I might be able to save you alot of headache and pain in looking for something that I already use. If I don't need a piece of equipment then I don't use it. I hope after reading my book you will have better sound, better video and a better overall movie. A dolly can come in handy for doing smooth camera work. This dolly is based on a simple design. It works great on nearly all terrain and runs on rails. My ebooks all come with audio to make them easier to use.