I'm in the process of buying an entry level tripod. I have a 20D/300D and light prime lenses. I would be using it for macro and portraits. I was considering buying a 3021 bogen but I'm a little unsure of a decent used price. According to this article http://www.photo.net/learn/nature/bogtri from '97 the 3021 should be <100$ but recently I've seen people asking a fair bit more. Am I possibly getting confused between the pro and non pro versions? How much should I pay for a 3021? Also any other recommendations? I'd rather spend less on the pod and more on a geared head.