free book: pro git 
I've been using
git off and on for some of my personal stuff for a while now. I found an interesting little tidbit of information at the
git talk which
Matthew McCullough gave at
no fluff a few weeks ago. Apparently there is a
neat way to use git under the hood which makes it work seamlessly with the
SVN repository. All the git commands are mapped onto SVN commands so the integration is seamless.
Also, on the topic I found a cool free book online about git:
http://progit.org/book/
