Hi K.. Okay I have a lot of advice because I have been going through something similar with my nearly 6 month daughter. I've had to start weening because by baby stopped gaining weight nursing. I remember the night before we started weening I felt sick to my stomach with dread, but it turned out to go a little better then planned.
First off bottles: the only ones that mine will take are the BreastFlow bottles by the First Years (target and babies r us have them). The thing that I like about the nipple is that it is wide and soft so the baby is forced to latch on with a wide mouth, similar to a breast latch. I noticed that my daughter sucks on it the same as my breast with her tongue out and under the nipple. Also I discovered that my stubborn little girl would not take breastmilk any other way then from my breasts. However she will take formula from a bottle. Since you have her on solids you could try introducing the taste of formula to her by mixing it with her cereal.
When the time came to get my daughter on the bottle I decided against cold turkey because I thought it would be too traumatic for her and it would be an easier transition for my milk production. What I did was figure out a feeding where she is happy and alert but very hungry. For her it was first thing in the morning. I then set the goal that I was not going to nurse her until she took something from the bottle; even if it was just one ounce. I tried every ten minutes for ten minutes or so; or until she was too upset. It took over two hours before she finally took the bottle and she was one hungry baby. Something you have to take into account though is that my daughter had taken a bottle in the past, but it was never consistent and we never knew when she would; it was always on her terms. However, I knew that it was possible for her to take it. So if your baby doesn't take the bottle after a few hours of trying you may want to just stop and try again the next day. But keep the timing consistent and be patient and persistent. Also, don't nurse her immediately afterwards if she didn't take the bottle. You don't want her to realize that if she holds out long enough that she will eventually get the breast. When she does take the bottle make sure you try it again at the the same time the next day for several days. This way she will learn to anticipate what's coming. Then when you are comfortable you can try adding in a another bottle during the day or switching the timing to a time when you and your husband might be away.
You will probably need to use some trial and error to learn things that make bottle feeding a better experience for your daughter. For instance, my daughter wouldn't allow me to cradle her with a bottle at first because that is how I hold her when I nurse her. I have to lay her on her back to give it to her. Also she prefers the milk really warm as opposed to room temperature.
I hope some of this advice helps. If you have any questions just shoot me a message. I would be more then happy to help you out, I know how you feel. Hang in there!!