After playing with many different beamer themes, I finalised my theme for Warwick presentations. The good thing about it is that with a little work with inkscape or your editor of choice you can change it.
This is based on a theme by drbunsen which he posted on his blog.
I have uploaded the files here (.tar.bz2 .zip ). In the main .tex file there are some details on how to use it. I will get around to adding some more details hopefully soon. When compiling you need to use XeTeX since I use a non standard font (Fontin Sans), but if you comment out that section you can compile it with pdflatex as well.
If you have any suggestions or comments you can email me