Best Martial Arts for Energy/Spiritual Development

[Epsilon]

Hey all.

I'm looking into learning a martial art and I was wondering which ones are better for energy raising and/or spiritual development rather than focusing only on self-defense (or sometimes even first strike attacks).  I was looking at Tai Chi (sp?) but I read somewhere that it is more like a dance than a classical "martial art".  I live in a Philadelphia suburb so I have access to many different types or martial arts, so that isnt really much of a concern.  Although Kung Fu might be difficult to find a good, genuine instructor. (so I hear)


Any suggestions?