Oh boy.
Well, this story begins a few months ago. I'll try to be brief.
I was at the doggy store picking up some treats and some people came in carrying a puppy that stopped me in my tracks. He looked stunningly like Nikki. I stopped them and commented, we chatted for a few minutes. Turns out that they had just got him and he's a JRT/Chi mix, just like my girl. I told them when he gets a little older to let me know, we should have a play date, nothing like another JRT mix to keep your JRT mix busy!
So, I haven't heard a word from them. All of a sudden, today - I get an email from her. She appologized for not contacting me sooner.... and would I like her dog? They have to move, and they are moving into a place that won't allow them a pet. She remembered that I was a dog-person that had a dog that looked so much like her "little man" and that she would feel he was going to a safe home (boy, was she was right about that!)
Now he's a 5 month old little guy, he's been "refistrated" (does anyone know what that means? I looked it up in a dictionary and googled it. Nothing. I assume she means neutered... but, I"ll ask to be sure.) and he's microchipped, has toys, crate trained, mostly 

otty-trained. I told her I'd think about it. I decided when I get home (out of town, in CHICAGO! So wonderful here, I love it!) I'll bring the girls by to meet him and see how they get along.
At this point, even if I don't bond with him, I'll feel like a foster mom at the very least. The other option is he could be my fathers dog, he loves Nikki like crazy... and well, it'd be a great match. Or, I'd keep him of course. I think I'll fall head over heels for the little guy and I think he and Nikki will be like long lost buddies. Poor Missy (although I've read around here that if there are two high energy dogs they'll leave the low energey dog alone and play together.)
The only real problem is that I'm not supposed to have 3 dogs. But I figure the two will look so similar it would be hard to prove, at least until I figure out what to do next. I'm just scared this little guy will end up at the pound or worse if I don't take him.
Anyway - so, I've just said my piece, thanks for listening! Any thoughts or advice is great!
Here's a photo: