I had ECC and had surgery. My surgeon was also able to get clean margins and I had no lymph node involvement. I was offered the opportunity to have chemo (Gemzar) and my doctor said that because of the clean margins and no lymph nodes, he felt it was an "option" and not a requirement. However, he said that had I had any lymph node involvement he would have strongly suggested doing the chemo.
I ended up doing 6 months of Gemzar, 1x a week for 3 weeks, with one week off. He did not recommend Zeloda and I did not do radiation (my choice).
This is not a recommendation for or against chemo (it's a very personal decision), however, I feel like I did everything I could and have no regrets.
Good luck whatever you do and just know what ever you do, it is right for you.