Topic: How do I...use my Chumby to display digital photos?

I love the Post Secret widget that grabs images from that web site and rotates through them on my Chumby.  I'd love to do the same thing with photos from my collection.  I don't have a Flickr account, but I do have my own web site.  Is it possible to post my files online and have my Chumby pull in the various images?  Of course, it is.  I guess the real question is HOW do I create that sort of widget.  I've had a little experience with Konfabulator widgets, but I'm not sure where to start here.