tedster - 12:27 am on Oct 29, 2010 (gmt 0) [edited by: tedster at 5:18 pm (utc) on Oct 29, 2010]
If your content is already recognized as quality by Google, then you're in as good a shape as you can be. And for the other part of your question, nofollow doesn't redeem you, only your content does.
I wouldn't worry about the current "chaos" with regard to making the changes. Just don't be too hasty in deciding whether you created a ranking problem - give it some time even if the rankings do drop in the beginning.
As I mentioned, this seems to be a human editorial decision and that's not likely to come immediately. any immediate ranking change is more likely to algorithmic or even a bug. Maybe fold in the new affiliate links a little bit at a time, at least in the beginning, then give it a month before going bigger.
[edited by: tedster at 5:18 pm (utc) on Oct 29, 2010]