I agree that Walt's face when Skylar got into her story was good, but her face when he said 7 figures instead of the quarter million that she was expecting him to say was far better. And oh god, the NA scene...
Jesse is going to fuck himself so hard with this latest scheme. Of course, I think it might take Gus a while to discover that something's up. After all, it's the exact same product. I wonder how Walt is going to try to smooth things over once Gus finds out, and I wonder if it will stop the hammer from coming down. Of course, considering Walt and Jesse's luck of narrowly escaping from most of their extremely bad situations, I think the timing will be such that Gus will go down shortly before administering Jesse's punishment. I also think that Jesse will be the indirect cause of Gus's downfall (He'll lead the DEA to the lab or something).