A firm, loving hand is the best way to help settle in a new addition.  YOur new girl needs to learn the rules of your household, so you need to be firm and consistent, without being harsh. She needs to learn that she is in her forever home, but that she has boundaries and limitations there.  It is far easier to keep a bad habit from beginning, than trying to break that habit later on.  Lots of hands on time, with training that automatically sets her up to win goes a long way toward building her self esteem and teaching her she can trust you.  Go over the basics, sit, down, etc. and reward with lots of praise, etc.  She will learn quickly that even simple things she already knows please you and that she can trust you.
Expect some accidents, and some unwanted behavior but try to never be harsh with her... a firm "no" (only if caught in the act) and a quick redirect to a proper behavior is all you need.  Also, be patient, you are both in the "honeymoon" stage right now... in a week or two, as she settles in you will begin to see more of the real girl who has become part of your family.  Enjoy, have patience, be firm, and beyond all lover her to pieces!!