First of all, the simple currency of consciousness is not sufficient to explain what we see. It does not explain why the trees in my backyard are in the same configuration when I return from vacation, without having been conscious of them while I was gone. Now we have to start talking about god or the Metamind or some such thing that is a huge leap from individual consciousness.
Huge step or not - the point is that theism involves much less of a step than materialism. (And, by the way, I agree completely with your critique of traditional idealism.)
Look Paul, the most scientific thing to do when constructiong a theory is to base it upon as many "knowns" as possible with as few (preferably zero) "unknowns" as possible.
Yes, the final theory will itself still be an "unknown" but if you use any other "unknowns" to reach the final theory then they act like wildcards making your final theory ultimately useless as it's really two theories and, thus, worse than the original situation.
I as a theist am only theorising the existence of another consciousness that is big enough to "think" the entire universe. I don't know it exists but it's a sound theory because, first, I already know that consciousness exists and, second, in principle, it can be tested should someone come along and prove that matter exists and is self-perpetuation and self-sustaining (i.e. uncreated).
But those are very big "ifs", Paul. You as a materialist have a very long way to go with your theory. Which is why it requires a heck of a lot more faith than theism. You've still got to find your substance and even then you have no way of knowing it's genuinely uncreated.
And then there's consciousness. There is absolutely no reason to believe that complex machines generate consciousness any more than simple machines (e.g. Dennett's thermostat).
Why would little bits of matter hitting off each other cause consciousness? You and Pixy and all other materialists are kidding yourselves if you think you have anything even approaching a materalist theory of consciousness.
From what I can see, all of the solutions offered seem to involve just ignoring the problem in some way or other and/or simply assuming that material interactions cause consciousness - and nothing more.
It all requires a heck of a lot more faith than theism regarless of how much you don't want to admit it.
Cheers,
HypnoPsi