As a follow up to this thread (http://www.lonestarball.com/2009/2/11/756042/wednesday-a-m-stuff) I wanted to provide the LS Ballers with an update.
One of the most recognized gambling websites, Bodog, has the Rangers listed at 74.5 for 2009 wins.
Obviously the significance is that this line is available for public wagering through the website as opposed to previous O/U discussions that were more "hypothetical" in nature. This is an actual line and is the best barometer of sentiment that I can find. The line is created to attract half of the money to one side and half to the other side, and it is adjusted as wagers are placed.
I searched the terms "over under" before posting, so I hope that this does not rehash an existing thread.