Hey Robynn,
there is another current thread that might help you also on this subject...
http://www.3fatchicks.com/forum/20-s...al-weight.html.
Obviously you have to decide for yourself, but my suggestion would be to set your goal weight for the moment at around 150, as a nice round number, and still within healthy BMI for your height (it would be 24.2)
Then stop thinking about it for a while, and focus on more short term goals, when you get a little closer to goal, you can re-evaluate then, when you yourself will have a clearer idea.
best of luck!