Yep, I think that's the right track. I put your numbers into the other site I use (and linked in the post above) and came up with the calculation that eating 1500 a day should give you a steady loss, which would make sense given the 2000 you came up with.
It's trial and error beyond that. I guess at this point I would suggest starting with that. Keep a really detailed accounting (on the site or otherwise) about what you eat and burn off and see how that correlates with the weight you are losing. The longer you do it, the better you will get to know your body and how it works to lose, gain, and maintain. The more detailed your records are about what you did, the easier it will be to see the patterns. It's hard to tell until you actually try some different things...above all, find what works for you, because it has to be something you can stick with.
What are you in school for? You really seem to be a detailed numbers person