Actually the build quality is "so so ", but I hate the OS. Leopard is rubbish and I have so many glitches its like using a Beta piece of software. I was happy with tiger, it worked and I didnt see that much room for improvement. However I was willing to give it a go, but its absolute crap. Its basically vista with a worse GUI (how much useless crap did they put on this new OS? generic ichat backdrops that dont work properly etc). The only improvement I have found with Leopard was the improved "speech" function which I expect is used by less than 1% on a regular basis by mac users. I thought I may buy a copy of tiger again and put it on this blacbook, but I now realize its not possible either. Has anybody found a successful way to "Upgrade" from leopard back to tiger? **rant over** by the way, my leopard ugly 3d dock has now frozen up so i cant add any programs to the dock.