There are rumors that the next gen asicminer product will be available in April and use .5w/gh. I'm also very impressed by what bitmain was able to do with their antminers and hope they come out with a more power efficient version soon. The 1TH dragon units also look very interesting.
I should check out their thread.. but did you set up any antminers yet?? what are you using to run them? and I've been keeping an eye on friedcat too if he can deliver those specs but I doubt he will sell for cheap going by his past sales.... but maybe the climate has changed