DCIS without radiation or medication

I was dx with DCIS on 11/12/09 and had a lumpectomy on 11/18/09. The path report came back the next week that showed my margins weren't clear. Had a reexcision on 12/10/09. The path report came back (see details below) with clearn margins and my surgeon said I don't need rads or medication because it was small and the margins are clear. He said to "watch it like a hawk" because of the nature of DCIS and that it could turn invasive and that I should come back for a 6 month mammo. I've been reading so much that now I am confused because so many people with DCIS have radiation. And what is an acceptable clear margin?

On the path report it states a section called "Premious Diagnosis on File" - I'm guessing this is from my original lumpectomy. The size here states "Isolated foci of DCIS, largest maximally spans 2mm (block 10). DCIS is present at the suprerior margins towards deep spanning. 5mm and is .3mm from the medial margin superficially."

After the reexcision, the size states "Isolated scattered ducts individually measuring up to 3mm and spanning an area estimated to be 1.0-1.5cm. The closest margin .8 mm from inferior aspect of lateral margin and 1.5mm from inferior margin."

Then what concerns me is the section called Microscopic Description that says "residual dcis" is also seen adjacent to the inferior and lateral margins."  Does that mean they got it with the re-excision or is it still there.

Does this sound right? I don't understand lateral, deep, inferior margins. It sounds like my DCIS is small? Is it? Again, does it sound like the margins are okay. Should I get a second opinion to see if Radiation would help? I would prefer not to have it if I don't need it, but would prefer to minimize a recurrance. I trust my doctor, I just am scared and want to do the right thing. I should never got a copy of my path report as I felt better just listening to the doctor - but everyone said you should have a copy of it.

 Thanks for any help you can offer.