psion's Stars
xsank/EasyProxy
Make tcp proxy easy to use.
psion/BannerTator
Image Rotator
psion/INI-Class
a replacement for PHP's ini file functions. This will write it as well.
SeanHayes/psd2html-gimp-plug-in
This is a Python plug-in for the GIMP that will extract images and text out of a .psd file (or other layered formats) and create an .html template from it. I don't think this plugin will ever fully replace a human coder, but it should be able to do 50-90% of the work.