A site called IGN has been releasing fairly informative articles this past week:
IGN: Age of Conan - Hyborian Adventures Preview IGN: Age of Conan: Class Warfare -- Part One IGN: Age of Conan: Class Warfare -- Part 2 IGN: Age of Conan's Combat Structure
These articles are great for people who missed out on the betas.
Another article regarding Siege Warfare is pending. Should be released in a few hours I suppose.