Resume for
I'm currently using Django against SQL Server 2005 at work. SQL Server isn't officially supported by the main Django developers, and they encouraged people using non-core databases to provide support as separate projects, rather than by submitting patches back to Django.
I took the existing SQL Server backend, forked it, and now maintain it on Google Code. There has been some good cross-pollination between this project and django-pyodbc, another SQL Server.
This backend contains a forked version of ADODBAPI, but I've submitted bug reports back to the parent project when appropriate.
The Movie Dude is a Greasemonkey script (aka a "Userscript") that cross-links various movie sites so you can, for instance, browse movies on IMDb and still have an easy way to get them in your NetFlix queue.
Nant2Viz is a python script that reads CruseControl.NET+NAnt build scripts and generates .dot input files for Graphviz. Essentially, it lets you visualize your build processes.
I've used this tool to help refactor and simplify our production build scripts.
sqlcmdbatch is a replacement for sqlcmd.exe that takes a "recipe" of files to process, and runs all found scripts within a single SQL Server connection.
Replacing NAnt fileset tasks which call sqlcmd.exe with sqlcmdbatch significantly improved the speed of our database build scripts.
GetArgs is (yet another) command-line argument for .NET.
We're using Django with Windows and SQL Server, which is not the most popular platform. I've been active in Django's bug tracker, particularly pre-1.0. (Since moving django-mssql to a separate project, my Django patches have been mostly documentation related.)
I've contributed these improvements to CruiseControl.NET:
I've contributed .NET 2.0 Generics support to NUnitForms, as well as some general code re-organization work. (I'm no longer actively using this project.)