I've found the following site to be an extremely useful tool for the conceptualization and building of characters for NWN2. It's my hope that P:E includes something very similar to enable us to plan our characters from start to end. People have asked for the ability to "respec" their characters, but if one can plan the growth arc of a character properly ahead of time, this would eliminate a great many mistakes that lead to the call for "respecing".
http://nwn2db.com/