Almost everything you need to know about DSLR shooting can be found at:
http://nofilmschool.com/ [see the free pdf Guide]
http://philipbloom.net/blog/
With Magic Lantern hack on the 60D you can record audio directly to the camera [one channel] and monitor it live [Google it].
I recently made a full-length documentary for PBS with two DSLR's - looked great!!
Wayne