Hi all,
Check out this link to youtube videos of Genpo Roshi's Big Mind technique. If you follow it through it can take you to a new level of consciousness and give you a great insight into the workings of the ego mind. It is really amazing. I was lead to this state of vast, infinite emptiness and I felt an immense sense of peace. It was beautiful.
They take about 1.5 hours to go through them all and its best to do them all at once (imho) but they are really worth it.
YouTube - 1 Introduction to Big Mind by Genpo Roshi
Enjoy!