Of course, I have to spend some time each week on paid work too, but I try and restrict it to MediaWiki and wiki-based organisation so that it doesn't cause the other projects to stagnate. Most of my jobs come through other people affiliated with the project and usually involves setting up MediaWiki's with varying levels of organisational structure.
I also do work through RentACoder and ScriptLance and do a bit of MediaWiki skinning work as long as it only involves implementing an existing design, and also do a fair bit of remote server installation and administration.
