Re: deck ledger connection
Barlovan - Interesting article, fairly well written.
The one point I took issue with was... "Embedding the outer support posts in concrete piers might provide sufficient lateral resistance for lower decks." The problem I have is that the PT lumber which is acceptable for embeddment is not approved for 'above-grade' applications, generally considered 18" or more above grade. Unless you have a very low deck, this could prove to be problematic.
I alos feel it will complicate repalcement of the posts when the time comes, but that's not really a 'code' issue, just a personal opinion.