Get a doberman dude. I grew up with them, and have had 4. They're awesome dogs. Sleek, mean lookin, and fierce - just like the Z. LOL.
They're actually one of the smartest dogs.. It took me no time at all to train mine and they have great personalities. They're known for being mean, but thats a bad wrap, they're mean if you train them to be, but they're cool dogs. I'd go dobey!