I just went through this with my almost 8 month old DD so i know exactly how you feel. We also moved recenty and it was getting so bad she starting fighting sleep in the day too. After trying everything... this is what works for me..

We have a routine.
Around 6- 6:15 (after she has been up since 3:30pm) she has a bath and i let her have as much fun as she wants..sometimes she is in there for up to 25 mins... after the bath its 'quiet time'. I have a bottle ready in the fridge which i made up b4 the bath...
I massage some lotion into her b4 i dress her and we pick 2 books from the shelf. I turn the kettle on and we sit down for story time.
After the stories, i heat the milk, turn the tv off, turn some of the lights off if lots r on and i feed her in the lounge room.
When she is done i take her straight to her room, we turn the cd player on, the night light and i lay her in her bed,kiss her goodnight while covering her with her wrap.
I sit on a toy box which is opposite her cot until she falls asleep. She is a tummy sleeper and at first did the whole going on her tummy to look at me and cry but i sat there peacefully ...trying not to show remorse and let her look at me..her head eventually got too heavy and she put it down to sleep. This took about 3 days for her to get use too...
This has been working very well for us for the past week and a half. We no longer have to take turns to rock or walk around the house with her.
Its so hard to see her crying but when you know she is not sick, hungry, thirsty or has a dirty nappy, when u know she needs sleep.. just being there for her is all you can do.
Try to ignore the crawling around and yelling..just watch her with not much of an expression and when she doesnt receive any attention for it, she will soon stop and go to sleep.
Best of luck, let us know how it goes.