Lee,
Just want to add that, of all the pieces of treatment, the neck dissection was the easiest for my husband - tonsilectomy, radiation, chemo were all far worse. I realize that your situation is different since you would be having it post radiation/chemo. Still, I know that just hearing about the dissection can be really off-putting, to say the least (my husband passed out in the surgeon's office while being told about it).

Best to you,
Anita