Successful podcasting requires a number of values and skills. The biggest investment you will make is your time, assuming that you really want to make a go of this. Your time is your most valuable commodity. We all have limited amounts and therefore any time we undertake a project, we are making the ultimate investment. But your time alone is not enough. Spend a few hundred dollars and get decent equipment. A mixer, a quality microphone, a microphone boom arm and shock absorber at a minimum. Invest in your work space. Make sure you have a very comfortable chair, adequate work area and a pleasant environment that will help you give the best you have. These resources won't make you a success, there are other factors involved. Rather, they will help you to become the best you can, which is what successful podcasting is all about.