hi Aaron,
Qigong is another avenue worth investigating. i addition to Aikido i practice Pan Gu Shengong Qigong which is very effective and easy to perform (about 20 min. to complete the moving form). i will soon learn the 2nd form (non-moving form) and healing skill from my Qigong Master, Ou Wen Wei (there are 3 forms to learn). check here for more info:
www.pangu.org
best wishes,
tony