I'd like to generate thumbnails of user entered PSD files, but I'm not aware of any possible way to do this with drupal yet...

What would it take to implement this functionality? I know it is possible with PHP and imagick:

http://www.phpro.org/examples/Convert-Photoshop-PSD-File-With-Imagick.html
http://blog.jumlin.com/2010/01/opening-a-psd-file-with-php-imagick/

Thank you very much for your attention.