I agree with others that it depends on insurance. I didn't bother contacting my insurance initially but just the Animas rep as they will walk through it all for you, from contacting your insurance company to contacting your doctor.
Just one financial tip: If you are low income you may qualify for Animas to waive your share of the cost. Talk to your rep if you think you may qualify.
As far as (non-financial) tips: Order Pumping Insulin by John Walsh - it is my bible for my new pump, although you also will need to read the manual for the Ping as each pump is unique, but he is great for general pumping information.