Newbie here, but not to cancer

My DH was dx with stage iv colon cancer mets to the liver 12/08, two weeks after my father passed away(not from cancer). We were blindsided, to say the least. Colon resection, iliostomy, chemo once a week for 26 weeks. In the middle of that, right lobe liver resection and finished chemo in Oct '09. No evidence of cancer til Jan '10 the day before iliostomy reversal when CT of liver showed suspicious area, right up against the diaphraghm. So more chemo...and tumor board decided that since the tumor was where it was, gamma knife stereostatic radiation was the way to go.(Cyberknife) CT guided biopsy, and marker placement scheduled...but no evidence of tumor..YAY!! Oncologist left it up to DH whether to continue chemo..we opted to continue until next scan, reduced drugs, no avastin. Tumor is back..so off we go for marker placement. Placed markers, and surgeon office scheduled cyberknife tx. ONE MONTH LATER insurance denies coverage because it is not a covered treatment. It took them ONE MONTH to say they did not cover this type of tx in the liver, while we sat around and did nothing waiting. I want to scream so bad..all this wasted time b/c ins drug their feet. We see the surgeon tomorrow to discuss other options, but they seem to be limited. We will crash the the oncologist office too..after the surgeon, to get his input. DH was so excited about the cyberknife(there are good results in killing off tumors) and now he is really depressed, talking about wills, and the end of life...don't know what to say or do for him.