Your father and your family are in my thoughts and prayers Brandi.
that's good news from the pet and ct scans!
start planning a trip to epcot now for when he's feeling better after the radiation. It will give him somthing to focus on and look forwards to when he's in treatment (my sister has 3 different kinds of cancer - lung, ovarian and breast and has undergone numerous treatments with chemo/radiation/surgery over the past 7 years that she's been sick - she plans a trip during every series of treatments to keep herself positive and strong for the trip to come - this time, she's looking forward to our trip to WDW in june.....)