Digital Outback Photo have taken a look at the image resizing software SizeFixer.

“I have been working with Sizefixer since mid November 2005 and have used it to upsize over 100 different images. I have found that I can get excellent results from a 2.74mp D1 shot all the way to a 16mp 1DSMKII file. Each time I have found that the output from Sizefixer has amazingly accurate details. Even with the issues that have been pointed out, I prefer the output enough to develop work a-rounds to overcome these problems.”

http://www.outbackphoto.com/workflow/wf_92/essay.html