Got a call from the study coordinator today with some good news - the doctor said it was an early Christmas present for us.  They just got word from the drug company that is conducting the study that I am on and they have finally agreed to pay for some of my CT scans - we should only have to pay for about every 3rd one - which will save us a lot of money.  While I am still not crazy about having to have the scans every 8 weeks, this will help some money-wise at least.