K.D.
I totally second "The Happiest Baby on the Block". My cousin hated the book, but I loved the video. My son was like your daughter, except with severe reflux (like requires surgery). We watched the video, and he was asleep in 10-15 minutes into it and slept for 4 hours non-stop.
If she's having that hard of a time, you might consider treating the reflux. I'm not a big medicine fan, but I had two who wouldn't eat without it. We've used both Prevacid and Xantac. We also have tried Axid and Carafate. My son says Carafate is an instant cure for it, and will eat really well with it. I think it's like Mylanta, so not long lasting.
Anyway, I'd start with the video. It's an instant cure! GL! Oh, we used a wedge, too, so our son could sleep on his left side (remember the pregnancy books that recommended that for pregnant mommies?). That seemed to help the two with reflux, as well. Hope you get some sleep soon! I still remember how intense those first weeks with a colicky baby were. I'm so sorry!