1Ds Mark III is still a good camera!
A newish web site Photocrati has just published a new review of the 1Ds Mark III. The review was done by Jack Neubart (author of Photographer's Exposure Handbook and contributing editor at Shutterbug).
There are cameras out there that are faster and smarter, but sometimes what you need is a workhorse camera. And this 1Ds Mark III, my friends, is a workhorse designed to stay the course.