-Barking isn't an issue for me at all. Wobie whines a lot when he's lonely, but a simple "quiet" will stop that.

- In my opinion, yorkies need a lot of attention. The more time they spend with their family, the happier they are. I think your baby will be fine by himself all day, as long as the minute you get home, and on weekends, you are devoted to giving him attention and love. I have a feeling that this may not be practical in a family with two parents working full-time and two children in highschool, because life is just too busy.

-Wobie chases my family's cats. There are 12, so its hard to keep them separate. I'm working very hard on training, but I'm having very little luck with that...

Good luck with your decision. :D

Before we got Lillybelle, I too, did much research on getting a small dog. We had always had cats and larger dogs. When my boys were 20 and 17, I was lonesome, only working 2days a week and decided I needed company at home, while waiting for everyone to come in and out of their daily routines..I had some of the same concerns. I did not know a "Single Thing" about small little indoor dogs...so I just starting doing internet searches..and thought the Yorkies were cute...but thought...they live 15yrs, thats a big commitment, they are expensive, etc, etc. I went to a local pet store just to hold one...
It took me months to decide, searching ads in the newspaper....but the day I went to see Lillybelle-it was "Love at first site!!" really it was just like that...she is not a dog like our other dogs have been...she's a person...really..
We celebrate her birthday (im sure there are photos if you look at my old posts), worry over her like a child, dress her....it really can get carried away...YOU MAY TURN INTO ONE OF US!!! if you get a Yorkie! I WAS NOT like this before with any other pet ..ever.

Your issues:

My son did bring home a cat (that had 4 kittens)...Lilly did fine...(they learn the world no and anything else for that matter very very fast).

She does bark if she hears the dogs in the neighborhood barking, but if we say no, she will stop. She does get in a panic..if someone comes to the door..we just pick her up.
I work at home..and the barking could be an issue...but at first I just bought a small water bottle and if she barked (she sleeps on my desk), i just sprayed her...and said no..only took about 3x of that!

Leaving her at home....would be the ONLY REALLY BIG issue...LILLYBELLE actually GRIEVES when we leave her alone..we find her hiding in the very back of the closet every time....We solve that by just taking her most places...If I had to be away all day....my boys or my husband would come home at lunch to check on her and take her out.

Lilly craves and needs lots and lots of Love and attention...she gets it from EVERYONE in our family....someone is always holding or caring her...

Good luck in your decision...you sound like a good yorkie parent...be careful...you could get carried away!!!!