I'm looking to buy an inexpensive digital camera. I'm into film/video so definitely want full manual controls such as focus, shutter, exposure, etc. But I'm really only going to be using the camera to shoot locations and to storyboard and such. So I'm looking for something used/discontinued that I could find on ebay for under $300. I just don't know what to look for when I'm getting a camera thats older as far as technology goes.