I'm researching the mechanics of home studios and my question is about recording actors dialogue. I'm looking for some advice on what kind of recorder to get and what medium. I don't need a recorder that has to keep sync with a camera because I will use it for radio plays. It also has to be portable so I can go out into the world to record wild sounds. All my editing will be done on computer.--I don't have all the $ in the world so any advice on an affordable recorder would be greatly appreciated. Also, if I wanted a used one, where do I go?