Question about Pancreatic Cancer

I am a 55 year old male in very good physical condition. I was diagnosed with Pancreatic cancer after having some abdominal pain for a couple of weeks. I am in stage 1. I am in my final week of both radiation and 5fu therapy. My hope is to get to M.D. Anderson and have the tumor removed. My question is should i go ahead and start the gemzar and the Xeloda that my doctors suggests or wait six weeks and get a new CAT Scan done and go from there? I am hearing a lot of conflicting stories.