boxers

I was wondering if someone with boxers could help me? or someone else who knows. I have 2 male dogs one a boxer puppy one a mixed 14/15 yr old. I am thinking of getting a 8month old female boxer from a breeder. I was wondering what people's thoughts are on 2 male and a female? puppy and female will be fixed old dog isn't.
Thanks

Melissa88,you should move your question down to"Breed discussions and information"and I am sure you'll get lots of answers,there are a few Boxer owners here.