Anyone recommend a good 2D CAD program for linux? Only one I can find is QCAD, anyone tried it?

get wine and use a windows one

I use QCAD. Fine for what I use it for - brackets etc and is simple enough to use once you get the hang of it.

There are manuals, faqs and forums on the company site - they sell it commercially and the free version that you get with linux distributions is a few versions old.

http://www.ribbonsoft.com/

SagCAD -- is also available not great