Andrea,
Past experience (none pleasant) has given Mrs. Cranky and me the firm resolve to get our indoors-only male kitten (a real sweetheart) neutered as soon as practical. Even a brief interlude with a indoor-living spraying tomcat would end your procrastination!
Besides, the vet tells me that neutered toms are the most affectionate of cats...altho I hope no one tries to extend this theory to HUMAN males... :(
- Da.