Thank you for all the tips and advice. I will definitely check out the links and get in touch with John. I am sure I have a lot more to learn than the dogs do. =P
Gideons girl, no, I have never brought Evie or Dexter to sheep before. Evie has been around horses, cattle and deer when she was younger, but not since we moved to the city. She definitely has a high drive and I would love to see how she does with sheep, although we are still working on her issue with men which makes bringer her places a little more difficult. (She has gotten much better though!) Dexter really is a low drive dog, and I wouldn't be surprised if he just looked at livestock while laying in the shade, lol.