I agree with what everybody says about Yorkies.
My Yorkie, Zack is 12 weeks old. He requires alot of attention...all he wants to do is play, play, play. (oh and pee, pee, pee!) My life has changed so much since I got him a month ago. It's like I have an infant who requires constant attention, but one that pees, runs around like a madman, and bites everything in sight.
But there are times that he is the most affectionate and loving puppy on the planet. I can't imagine my life without him.
Here he is during one of his rare quiet times (at 8 mos): (you can click on the image to get a bigger size)
http://i5.photobucket.com/albums/y19...l/th_Zack3.jpg