Young and diagnosed with stage 2 Colon Cancer

Diagnosed with Colon Cancer September 19,2011. Resection of sigmoid colon 16 inches removed. Surgery went well. Stage 2 t3, no mo, moderate differientials was the diagnosis and apparently there has not been case studies involving the benefits of chemotherapy on this stage although they use to treat is same as stage 3. If I can do anything to decrease the chance of this cancer returning, most probably in my liver I was told then I want to do it!! Because I am young they just sent my pathology to Mayo for genetic testing. I am ready to get on with killing anything that may be left and insuring it doesnt return. Has anyone else had this delima.?