Well first off, you need to become an RN. Doesnt really matter where you do that. An RN is an RN. Then you must get experience. You need critical care experience. Floor nursing wont cut it. Ideally, you will go to work in a busy ICU and get as much experience as you can. The minimum is 1yr but I would think most folks have at least 2 years. Once you have the experience to prepare you to enter CRNA school, you can apply to the program of your choice. I wouldnt worry about what degree they offer unless it matters to you. If you go to a school that offers an MSN it is within a school of nursing, then be prepared to do some research. Regardless of which school you go to, you will graduate with a Masters degree and you will be prepared to practice anesthesia.