Who cares about Richard Dawkins and James Randi? If they want to get caught up about whether (OBEs|homeopathy|God) exists or not, let them spin their own wheels.
There are more important things to do, and I've come to the conclusion that trying to satisfy (a certain creed of) skeptics is useless and a waste of time.
Radical, if YOU want to find out whether OBEs exist or not, why don't you do your own hard work and try to experience it for yourself. Other people have more important things to work on, and we don't need silly stunts such as challenges, or $1 million prizes, or accusations of fraud.
I got an idea. Since you seem to be "in tune" with the great scientists and also with the skeptics (yes, I separate them out, though there is overlap), certainly you are familiar with how to design and run an experiment in a blinded and controlled fashion. I think you might have suggested one or two on these boards. Why don't you run one and report the results, positive or negative? That way we all have something concrete to discuss in a scientific fashion, rather than vague notions of fraud, or what the "great scientists" say. And the discussion, I assure you, would be much more productive for all of us.
EDIT: By the way, I happened to do this a couple of nights ago with an applied kinesiology technique and reported the results at http://www.stevepavlina.com/forums/spirituality-consciousness-awareness/419-whos-read-power-vs-force.html#post3200