I don't know who Carl Calleman is, but I agree with what he says about not just waiting around for things to change, we need to be active participants.
I believe it is a good idea to have designated days as raise consciousness days.
I haven't studied what the Mayans say, I go by the spirit messages I received.
I've received a number of messages stating that significant changes will happen this year, mainly in October and something in June. I recently received a message that something will happen in 2012. I guess it isn't a one event process.
Regarding the 100th monkey phenomena, I've read that that story isn't true; nevertheless, I've received messages stating that it does apply, without the 100th monkey phenomena being directly referrred to.
The messages stated that if enough people get to the point where they live according to love to a significant extent, it will effect and change this world vibrationally, and this will lead to a new and positive way of manifestation.
Regarding 3,000, in his book Descent into Death, Howard Storm speaks of an idealic way of life taking place in this world in a couple (or few) hundred years. He was surprised to see that rather than a super technological society existing in the 22nd (or 23rd) century, numerous small communities will exist, they will live according to spiritual principles, live in harmony with nature, healing will take place spiritually, people will be in contact with spirit realms of existence and alien beings, people will be able to travel anywhere by thought, and when they feel as if they lived in this world long enough, they'll leave the body they used without it having to die in some way.
Howard found it hard to believe that this world would be so wonderful so soon, but he was told this is what God wants and this is how it will be.
Or in other words, we don't have to wait until 3,000.