I've just launched the new website for St John's College JCR at http://johnsjcr.org.uk/. It's based on Drupal 4.7.3 with a lot of extra modules added, but mainly based on the Organic Groups module. This helps to organise all of our little subcommunities and groups. I also hacked together a custom module called groupforums, which displays listings of one of the OG node types as conventional forums, in order to help people get used to the site.
My site is live at the new domain, and my old page is now redirecting here. The theme still needs a lot of work, but I have other priorities right now.
Most of the work in setting up the new site has been in migrating from PostgreSQL to MySQL. It wasn't a personal choice, just what happened to be on the servers. I took the chance to do a complete Drupal reinstall, and have a few new features planned for the coming months.