AM with Amazon is amazingly easy to do, they walk you through EVERYTHING. I just helped my fiancee set up a blog for herself, and taught her where to look for amazon links.. and they showed her the rest.
There is one HUGE downside to Amazon, and that is on the return days. If they do not buy on that session, you do not get a commission. The cookie is a session cookie, so your pre-sell has to be rock solid.. then you gotta hope Amazon finishes the sale... unlike other programs where you might still easily get credit if they return later.
One big upside, though, is that you can get payouts with as little as $10 in the account. You can only get the small amounts in gift cards to amazon though, but you can find something you would buy from there to spend it
