Considering your setup, it seems somewhat unnecessary to employ distributed version control when you're only working with a few local computers. This is especially true if you're already running a function SVN server. Distributed version control tends to be a lot more useful in larger projects with lots of branching and merging going on, as distributed VCS tend to value high quality merging over everything else.
That said, Google has chosen to go with Mercurial (Hg) as their distributed version control on Google Code. Most of the reasoning had to do with speed, flexibility and ease of use. Certainly, the Hg command set looks a lot friendlier than the Git command set, in my opinion, and it tends to play well with older SVN repositories.
