So I was looking for the standard (read: free ;) edition of Google Apps. I did it already once and it was pretty easy. I had a hard time looking for the standard edition since the landing page only seemed to advertise the premium (read: give Google your money ;) edition.
After a little bit of googling (ironic isn't it?), I found it here.
I did notice one change. The number of users allowed went from 200 to 50. :-/ Oh well. :) It's still pretty awesome.
Up next: how to set up Google Apps Standard Edition