Cute little mix....have some Q's

I'm not really seeing Husky or ACD?  They look like Catahoula mixes, in which case they'd be quite large.  Maybe lab mixes.  Big dogs.  Active but not terribly so - Cats are independent in a houndy sort of way, stubborn like a terrier, but with some herdiness.  You know what a lab mix is like.

I wouldn't be in a huge hurry to add another dog.  My advice:  settle in to working with Sam more - sounds like you've got lots of room for messing around with him. 

I'm not really in a hurry - I've came to the realization here lately that I'm a one-dog type of person. And Sam is too. I can't pet Taz without him gettin jealous. So, as much as I'd love to get another, it's just not the right fit right now. And - I still haven't gotten my bike, I've been bugging that crap outta my Mom for one too. LOL