I said earlier that Google Apps standard is not that great and may even be less interesting than Google personal. Still, you may want to give it a try, as I did.
Here is a good rundown of the different things to do:Setup Your Personalized Google Apps Suite. The process is probably the same for Google Apps for Business. Plus, know that you have a 30-day trial for Business for free—after these 30 days, you can revert back to Google Apps Standard with no problem.