Obviously, (if you have read my above posts), I would not recommend the Sedona Method. In my opinion, my husband's use of Sedona Method book and the Release Technique, has resulted in increased avoidance of and disconnection from emotions. This link lays out quite nicely some of the problems inherent in these sort of techniques:
(in case the link doesn't work it is at emoclear.com in the ask Steve Mensing II in the forums posted 5-26-2006)
This above site has many great processes available at no cost.
For anger in particular, I really like Thich Nhat Hanh's "Anger, Wisdom for Cooling the Flames".
For negative thoughts, I (and several people on this board) have found Dr. David Burn's very helpful. I use his "Feeling Good Handbook."
Good luck to you.