http://pma.flat-screens.de/pma.htm
I've known about this one for a while (I'm sure many others have as well), but it's never made it on to my site, oddly enough. Oddly or otherwise, it's here now and it's pma.flat-screens.de.
It's a German site, but here's a Googlefied English translation:
http://translate.google.com/translate?u=http%3A%2F%2Fpma.flat-screens.de%2Fpma.htm&langpair=de%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools
This site has nearly everything needed/wanted and possibly not wanted for the PMA. Bookmark this one, folks, you'll be glad you did!
Happy downloading!
UPDATE:
Thomas (of openPMA) has pointed out 2 important factors:
To both these points, and in agreement with his recommendation, if you find something you would like to install, first research (via orginal package source or with the help of various PMA groups) whether or not it is suitable for use and up-to-date.
Thanks (again) Thomas for your input on this.