Look at autohotkey on this site. Its free but takes a little more effort to set up. Its not imho as powerful as isboxer but it accomplishes what you need to do. You can attack on your druid whilst stopping your hunter from moving in and can attack on both. Download jamba to make looting questing following everything in wow easier.

Theres alot more your missing from just putting on follow. I understand i started with autohotkey years ago but done forgot how to set it up and when i tried it again i was like ummm yea nope going back to isboxer. Yea so jamba a MUST autohotkey work with it and you will be able to do just about everything you will need to do to make it look like two toons are playing.