Thanks, spexy -- I had just bought that issue of Velo News with the Hamilton poster, which is what made me curious to know where I could get other racers' posters. I had also already visited Graham Watson's site. There is a good amount there.
What's interesting is that I contacted Saturn to ask them whether or not they have posters of the Saturn Cycling Team, or even of individual team members. Three days later, I got an email reply that the team is not considered "promotional", and so no photos or posters would be available for sale...