I would like to clarify, though I do see your point and how it could apply to my dogs in regards to me being the common denominator, I wasn't angrily flailing at my horse at the time, I said shoo loudly and made a shooing movement with my arms (to which I might add he took no notice :P) I know my horses very well and don’t behave in a way that would scare them.
I can agree the problem is me somehow however and obviously I have gone wrong with Chloe somewhere. My other dog, Rosie is a greyhound X cattle dog who is beautiful and was a pleasure to train and is to have around. She is gentle, obedient and calm. I think perhaps I have not been consistent enough with Chloe as when she was in her teenage years my father got diagnosed with cancer and died a month later, following that my mother had a nervous breakdown and I had to care for her and then I got pregnant with my daughter. I don’t believe she had the time spent on her that she needed.
I will explain what happened the second time Chloe attacked Bindi as I feel everyone needs all the information to properly see the big picture. I was feeding all three dogs, away from each other. Chloe was tied up while they were eating. When they were all finished I untied Chloe, not even thinking about the bag of dog food I had left sitting on the table. Chloe started to stand over Bindi, her fur on end and growling. As a knee jerk reaction I put my hand on her back and said “NO”. I did not yell it or say it with irritation. However it acted like a trigger and she went into action. Obviously now I can see and have learnt that was a grave mistake on my behalf. To touch her enhanced her aggression and she attacked.
Chloe genuinely does like the other dogs and enjoys spending time with them. There is never any aggression shown without a trigger. As I said before they play together, Chloe usually initiates the play times and Bindi and Rosie are happy to oblige. If they don’t feel like it they let her know and she listens. They sleep snuggled together, groom each other etc. Chloe showed concern when Bindi came home from the vets, sniffing her wounds and trying to lick them and there was no aggression in her body language.
I realise the muzzle is a quick fix, and by no means want to make it a permanent fixture.
I still feel Mr. Curbow was rude. I understand he was concerned for my other two dogs but he did not take the time to read my posts correctly so I feel he has no place in saying what he said. I would not like to discuss it any further please.
I don’t mean to say I want her to listen 100% of the time, I don’t want a push button dog. I enjoy my dog’s unique personalities and want them to continue to be themselves. By that I meant I want to feel comfortable that she will listen most of the time, even when there are distractions. For the moment she is very obedient as long as she has nothing better to do, lol.
Also, as I said in my opening post she is a brilliantly smart dog, and I feel I owe it to her and myself to use those brains. She has so much potential to be a wonderfully trained dog, I just need to find the right way to teach her.
Again thank you for all the advice it is very appreciated. I am currently reading Leerburgs Ebooks in the orders hes suggests and will be putting it into practice.

I am not a trainer, nor a person experienced in herding dogs. I have owned 2 cattledogs, one pure and the mix I have now.
Some of them can be bitchy and they like to be the boss, and if anything is going on they think they should be running it.
Always thinking, often trying to make a point if they sense any "void" in leadership.
It sounds like you have 3 bitches, that can be difficult too. Your younger dog is just getting old enough now to be "full power".
I wish you the best. They are the greatest dogs ever if you can get control. My last one was too much dog for me, I could never completely trust her. With the help of these folks on the Forum, this dog is turning into my best dog ever.

Thanks Betty. What you say about them being bitchy and liking to be boss suits her perfectly, and about the void. I am determined to get control of Chloe, she is a beautiful dog and deserves all my dedication.

just another question, to start Chloe's training and to get her on the right track, which of Ed's Ebooks should I read and in what order? The basics is an obvious one, and then what? There's just so many and I get distracted LOL

I'd probably go with #5 here first:

http://leerburg.com/dogtrainingebooks.htm

Can you get a DVD?

can you post a picture of your dog?

"I still feel Mr. Curbow was rude. I understand he was concerned for my other two dogs but he did not take the time to read my posts correctly so I feel he has no place in saying what he said."

Jessica,
After re-reading your post correctly I see that I was wrong . I think that a few days with a clicker and some treats everything will fall right into place!

Thanks Al

And thanks Connie I'll start there

Betty, I could but I have no idea how to! lol. I'm not sure how to get a pic of her up as my signature? Is that how you guys get photos up of your dogs? I know im not allowed to post photos otherwise..

Oh just read the rest of your comment Connie, I can't rly afford a dvd atm, we have two cars we're trying to fix, pay for and get on the road :S Hopefully before too much longer I'll be able to get one but in the mean time the ebooks will have to do

Al, ever heard of ...... Death by Spanking Gloves?