Oh wow, I bet you're absolutely over the moon!
I love tri colour border collies. We've got a black/white collie ourselves, though I must admit I prefer the tri-coloured Chloey I see in the park a lot ... bad me.
Please do post loads of pictures and updated when you do get her, she sounds lovely. Then again, which 6 weeks old puppies aren't cute? You got yourself a good catch there (partner wise!), I'll have to poke my hubby for a puppy now ... tried kittens before, but that didn't work. Lucky you =)
So, does that make 3 dogs now? Or is she already included in your signature? Guess we'll have another pet of yours in the next potm, or maybe the one after =)