I embarked on this very same search about two months ago. The best site I found is a Japanese site called ski-and-ski.com. They have a very nice selection of FIS racers both recent and some older "favorties." Here's the link to the photo gallery:http://www.ski-and-ski.com/work/Gallery/GalleryTop.htm
Additionally, for a more hands on approach, try using Google's image search as opposed to the default web search. This is useful if you're looking for pictures of a particular racer/skier. The results of the search will be presented with thumbnails and file size info.
I'm currently using this photo as my wallpaper:http://mypage.bluewindow.ch/berthoud...004/miller.jpg