This is, what I predict, will push Sarah to declare by the end of February. Elections will be over. The new congress will have been sworn in and she needs the secret service protection from these insane whack-jobs on the left.
Of course..if she does decide to run she won’t do it now, she will wait til early next year. Right now November is the most important, let’s take care of business next month and we can worry about 2012 down the road
Moreover, running for President after announcing her candidacy will be a full-time job, and will result in a diminishment of income, and so I'm sure she will want to make sure that she has enough in the bank to carry her through 2012 and take care of her family while she is campaigning coast-to-coast (which is a LONG way from Alaska---Seattle being the half-way point by air!)