There is nothing that brings a bigger smile to my face EVERY DAY as watching my little boy try to get his beaning little behind to the ground so that we will pet him. (He can't get loving until his rump is on the ground.)
I am also a first time boxer mom (18 mths now) and I am waiting right now to get my second. If you don't have patience, you soon will!
They are worth every bit of trouble, work and money (and new plants, clothes, shoes, remote controls, DVDs, DVD players, lamps....)
Enjoy your new baby!