Here is a link about why spaying/neutering is so important:
http://rabbit.org/faq/sections/spay-neuter.html
Here is a list of rabbit vets:
http://rabbit.org/care/vets.html
If you can't find a vet near you try calling a nearby rabbit or guinea pig rescue and ask them.
If you haven't already visit
http://rabbit.org , It is the BEST rabbit website and has tons of info.