I was getting pretty tired of the usual LaTeX Beamer presentation themes (see here for examples). So I decided to create an (unofficial) LaTeX Beamer theme for the LSE.
It is based on the BerlinFU theme and Seth Brown's Bunsen theme.
It's still very much a prototype (the style files need significant cleaning up). But the theme does produce decent presentations (see here for an example). You can find the theme on GitHub here.
Please feel free to improve or fork it.
Update 11 January 2012: Here is a full example of the theme in action: