Dream, I think your very rigid bedtimes are a good idea. We try to do the same, although I often feed to sleep - mainly because at that time she often falls asleep eating! If she doesn't sleep straight away then I can put her down awake and she'll chatter herself off to sleep. Yet to try white noise, but maybe it would help us through the night...
Scream, have you tried leaving the room when A is crying? I don't mean leaving her to do it for ages and ages, but have you given it a go at all? Maybe if you weren't in there she would just sleep? I know that if Iz isn't starving she'll shout, then quieten down, then make her trying-to-get-to-sleep noise... and then will start shouting (and maybe crying) if she's still unhappy. Either way, her spending another night with your Mum may help her get into the habit, like you say!
Too, we're off to Ikea tomorrow - probably also to spend too much. I hear they have glasses, plates etc with musical notes on, which I fear may tempt me...
Was out at bedtime tonight (oo get me), but apparently Iz behaved impeccably :) Although she didn't want DH to give her milk - so he got out the bottle with handles and she did it herself. Woke up just as I got home, so have fed her.. will see how long she lasts.
Haven't forgotten the photo (it's not that good-when I get round to it, probably during a night feed, it'll be rather disappointing!).
...having just written that, she's woken up. Argh! But she's making her sleepy noise... fingers crossed...