ATI have a great chart with links etc here:http://www.accesstoinsight.org/ptf/dham ... /loka.html
And here is a sutta that describes the difference between an 'educated disciple of the noble ones' and an 'uneducated run-of-the-mill person' regarding what happens to them when their stay in a Brahma realm ends.
Kind of has the effect of increasing one's sense of spiritual urgency to reach stream-entry in this very lifetime, methinks: http://www.accesstoinsight.org/tipitaka ... .than.html
Then the Blessed One, picking up a tiny bit of dust with the tip of his fingernail, said to the monk, "There isn't even this much form...feeling...
perception...fabrications...consciousness that is constant, lasting, eternal, not subject to change, that will stay just as it is as long as eternity."