Our 7 year old Rot won’t mind me and growled at my 2 year old. What should I do?

We have two dogs, a 7 1/2 year old female rottweiler mix (neutered) and a 7 year old male rottweiler (not neutered). We have had both since they were puppies and both were raised as outside dogs. The male is very dominating toward the female and will push her out of the way any time we try to pet her. He is also very aggressive towards our neighbor's dog (a toy poodle) and rushes the fence when it barks at him. He refuses to mind anyone but my husband and is therefore very difficult for me to control.

The dogs live exclusively outside and are restricted to half the yard by a three foot high fence. We spend quite a bit of time outside, but since the birth of our son (who is now almost two) the dogs spend more time on their side of the yard.

My son likes to look at the dogs, but recently the male has lunged at him rom behind the fence. I am very concerned by this and am now afraid to be in the back yard with my son with out being right next to him since either of the dogs could easily jump the fence. Recently, when the dogs were on our side of the yard, the male attacked and bit our cat. He had never shown any aggression toward him before and we're not sure what caused this attack. I suspect that the male is becoming jealous of our child and that explains him jumping at the fence.

My question is, do you think we should keep the dogs or give them away? Would it do any good to have the male neutered? I am very concerned for our son but am not sure who would take our dogs since they are middle aged and we would like them to stay together. Since they are not extremely aggressive (especially the female who is very gentle) we don't feel that they should be put down, but we feel they may not be suited for a home with small children. Do you have any suggestions?

Thanks,
Nancy