"I'm also very secular and atheist person who don't like organized religion."

Its fantastic that it works for you. For me, This is exactly why I couldn't handle Zen. It feels too much like the hierarchical church patriarchy.

Due to this I've gravitated towards the Pragmatic Dharma crowd which tends to be a mix of Theravada and Advaita practices (though rejecting Advaita view).

Some resources for the looks-like-religion allergic:

http://kennethfolkdharma.com/quick-start-guide/ http://www.dharmaoverground.org http://awakenetwork.org