Oh please let it be a girl!

Let me just start by saying I really do love my boys.  They are super sweet and so hilarious but when they are together they are constantly fighting!  I seriously feel like most days I'm pulling them off of each other, or they are yelling at each other.  Now since I only had one brother growing up and he was the least likely to yell in our house I have no idea what to expect from boys.  Is this normal?  I've asked a few other people that have boys close together and it seems like their boys get along pretty well.  So I don't know if its just a phase or they are doomed to always be at each others throats. I"m sure I"m over reacting but two weeks of spring break is really starting to take its toll!  I'm really ready for the kids to get back to school, and I think they are too!  And I can't wait to find out what we're having, only 12 more days! Don't worry I'll still be excited if its a boy.  :)