Cyberknife for ovarian cancer

I am a CA ovary patient who wnet through complete hysterectomy in end of 2005 followed by six three weekly cycles of chemo -- taxel and platin.  The doctor then had siad that I had 1C.  I was in remission till May 2009 when my CA 125 shot up and the disease progression was confirmed by a PET scan.  Some advised surgery; others wanted me to avoid it at all costs.  At the end I just had 18 weekly rounds of chemotherapy, again the same ones.
After a little over a year the cancer has come back.  The doctor again suggests surgery followed by chemotherapy.  I have heard of the cyber-knife.  Is this a possible alternative?  If so please advise.  I need to make up my mind fairly quick.  Thanks, Muna