That's brilliant news Rosa! 50g. is actually quite good, when DD ahd her 10 day check she'd only put on 40g. but the paed said that it was more than fine and a lot of babies were still losing at that stage.
Re the breast pump, I found the Chicco not very good at all, the Avent one was better but I'm sure an electric one is better still. At the very least you won't get a stiff wrist. Tell your DH that renting a pump is def cheaper than buying formula! I've heard they make a lot of noise though, so you might have to segregate yourself when others are trying to watch TV.
Pippi - what happened to your DH? Is it the pneumotorace again? I hope he gets better soon.