OK day two and no bounces yet. I even had a comcast customer that has been suffering from this work with me and sign up with our guestbook which emails her a guestbook submission confirmation. She got it and I didn't get the bounce.

Wow if this is actually working and setting up an SPF and a reverse DNS entry combined with requesting to be removed from comcast's block list, then it really wasn't that difficult but I've learned to seriously not count the chickens in the nest so I'll wait until the middle of next week to make a determination on this situation.

*crosses fingers*