Yeah I'm looking into ImageMagick right now

The installation notes seem clear enough. I'll install it on my server tomorrow- that is, if the hosting company agrees
I got a reply from Jark (Deviantart) and he recommended it. That's what they use on
their web site so I think we're definitely on the right track. I just have to find a good script that knows how to use this so I can test it out. Jark would have made one if only he had the time, too bad