I am only going to list the principle pieces, and assume guys like Walker and Giddens can be added or subtracted to make the CBA restrictions work:
BOS Sends Rondo, R. Allen, Perkins, Scalabrine
BOS Gets C. Paul, Okafor, Posey, Sefalosha
OKC Sends Sefalosha, Ibaka, Phoenix 2010 #1
OKC Gets Perkins
NO Sends C. Paul, Okafor, Posey
NO Gets Rondo, R. Allen, Scalabrine, Ibaka, Phoenix 2010 #1
Boston gets Chris Paul. That is what this trade is about. Perkins for Okafor is pretty much a wash (I like Perk more too, but expect Okafor to improve here), and Sefalosha gives us a defensive stopper in place of Ray. Posey gives us nice depth at the three.
OKC jettisons a couple of superfluous assets - Sefalosha and Weaver are about the same, Harden will start soon enough, and they have enough picks / young guys - and lands up a legit center with a championship pedigree.
New Orleans is the tough one, and this really comes down to the relationship between Paul and ownership/management. If he is unhappy, this is probably the best deal they will get - a stud replacement, some young upside and a ton of cap relief.