20d is a great body, too much of a camera to start out with. i would start with something lower like a xti, xt, or xs.

i shoot semi pro, and have a xti. its all about the glass, the only down fall that i have on my xti is that its not full frame other wise then that its perfect for me.

here is a link to my port
http://www.modelmayhem.com/pics.php?id=467793