Guys, I ride a 2005 z750, I bought it for 9 grand with only 6,000km on it. It has not given me any headaches, and provided me with plenty of grins. I commute to work on it everyday in sydney traffic, i couldnt tell you how far i get to a tank of fuel because i dont really care about how much i spend on it

.. If it gets me there it gets me there, if it doesnt then im screwed. The bike is great fun in the twisties of the old road and is not back or wrist breaking in traffic. I only have the stocker exhaust on it, but they sound great with a micron system. Turns plenty of heads and is a pleasure to ride. I was looking at the z1000 however its 1500 bucks less on insurance to have the 750 for me. You will read at
http://www.riderforums.com about the nasty bar buzz they both get. It has a few easy fixes so not to worry.
I am very happy with my bike and its a FUN bike, it makes commuting to work everyday enjoyable.
All that said, im upgrading to an Aprilia Tuono at the end of the year, i have the naked bike bug and i test rode one, its like a motard on steriods!! ..
If you have any lingering doubts about the zed, post em so i can snuff them for you!