Here are some more links
Check this
http://www.coinpeople.com/index.php?showtopic=12649 for some absolutely stunning coin pics.
I was so impressed that I went out and got the cam he used to take those shots with, the canon A640, and it just makes a universe of difference over the cam I have been using the last 3 years. It is so good it is acutally a double edged sword, as every single nick, smudge of speck of dust is caught as if in the glare of a spotlight.
I literally just got this cam yesterday so am still tinkering around with the settings. Here is a quick shot I just took of an error penny by hand [no stable table just yet].
Keep in mind also that many pics [as the ones in the link above] you can download them, open them up in the viewer of your choice, and look at properties and EXIF settings. This will give you info on the various settings that were used on the shot, and can be a real help.
Finally, heres another link from the guy above, detailing his setup.
http://www.coinpeople.com/index.php?showtopic=12650