I cannot stress enough how important I think these classes are! This is my one big piece of advice to expectant women who plan to breastfeed, GO TO A CLASS! Yes, it's ideal when you have an actual baby, but if breastfeeding is important to you, then I would absolutely take it very seriously and seek out a class pre-baby. La Leche Leauge meetings are free and there are often expectant women as well as parents with kids of all ages. I had lots of problems in the beginning, and I would say for most women there is a learning curve. Anything to make it easier and help you stick to it is awesome in my book. Also, you will already have a contact and a place to go to seek help, advice, camaraderie. You and your baby's needs will change over the course of the bf'ing experience and it's nice to have somewhere to turn.
I did go to a few Le Leche meetings, but attended also the hospital's ongoing lactation meetings (also free) and held twice monthly.
The information was invaluable. I am a huge reader and absolutely did not find reading comparable to hearing real life experience and being able to talk and ask questions in real life. Reading is awesome, the classes are much better.
I had a birth center birth, so no lactation consultant on hand for me. I also had lots of unanticipated BF'ing problems. It was essential for me to have a support group and a place to go for questions and answers.
Check with any hospitals within driving distance. The hospital I attended classes at was not where I delivered. Also, i'm sure you can find a local LLL meeting