Yep, I had one that looked EXACTLY like this one!
http://good-times.webshots.com/photo...93857808CHHdYW
We had to rehome her because things just weren't working out here with us. I had a lot of problems with her. For one she began chewing the corners of the walls in the house every chance she got. She REFUSED to be house broken. Those issues I could have worked with. BUT.. our other2 dogs didn't like her at all. I have a German Shepherd and a Yorkie. Shep would growl at her and run and hide every time she went near him. Diesel would end up getting rough and trying to bite her because of how aggressive she was. If she was sleeping and we moved her she would bite us. So I thought it would be better to find her a home with no other animals.
All mixes will look different. You just have to be careful and look long and hard before deciding to get one. Make sure you get to see the mom and dad so you can see what their temperament is like. Good luck.