Excellent compositing resource (PDF & Node trees/ groups)

Just found this post on CGtalk.com

http://www.assistcg.com/compositing.html

Excellent resource for when working with the compositor, the PDF for 2.49 explains the nodes, and the various set-ups in great detail. I’d definitely recommend you check it out as it will even work with 2.5x

I haven’t managed to check the source files yet, but currently downloading.