In this error statement:

$ sudo gem install technicalpickles-jeweler -s http://gems.github.com ERROR: Error installing technicalpickles-jeweler: technicalpickles-jeweler requires git (>= 1.1.1, runtime)

This is not talking about your git binary version, which at the time of this writing is 1.6.3.3. It’s talking about your git gem.

So just do a nice:

$ sudo gem install git

And you’re off. Rock on.

Now to go mess with actual rubygems problems…