Thanks for your replies. I've been reading more about it now myself and found
here that "In the United States, most dogs are neutered between 5 and 8 months of age. Many humane shelters and veterinarians are starting to neuter male animals at a younger age, even 6-14 weeks of age. This early neutering does not affect the growth rate, and there are no appreciable differences in skeletal, physical, or behavioral development between those animals neutered early than those neutered at a more traditional age."
Is that something you guys would agree with? My general paradigm is to be "natural" and not do anything to the dog, but I'm starting to feel there are some good reasons to do this and not really any negatives.
Thanks again for your thoughts and input.
Sally