fitgirl- that fact that you mention accountability shows that you have your head in the right place. Being accountable is a huge part of weight loss success, that many people miss out on. I'm here to encourage you if you need help along the way, just let me know.
one of the "biggest losers" (if not, the biggest) that I know of on here, mfagerstrom, turn me on to a 52DC (52 day challenge) on the men's health forum. They have women there as well. The challenge has already started so you wouldn't be able to join now but it's help me stay focused and has made it fun again. There may be women specific boards that have similar challenges where you report to the group on a daily basis. If so, I'd suggest joining one.