Hi all! If anyone has any questions or comments, I'm happy to answer 'em!
(Fantastic work on the site btw. Looking forward to seeing more.)
• Record the entire experience full-screen with Screenflow (http://www.telestream.net/screenflow/ - highly recommended)
• Paste stills into Keynote, annotate them, etc.
• Export to PDF, split it into individual jpegs via Automator, batch scale them for web via Ps droplet
• Display images on site with homemade slideshow js, plus zoom effect from jQuery Zoom by Jack Moore (http://www.jacklmoore.com/zoom/ - also highly recommended)
That's about it!