Sarita - I just picked a reasonable place to start, using a formula like Ishbel's. Then I monitored my eating on MFP and weighed weekly. If I was going up, then clearly I needed to cut back on calories and vice versa. By doing this, you will find the right calorie level before too long.
Hot chocolate sounds great! I love my almond milk!
Reached goal on 11/26/12!