We took a class that was taught in the "Birthing From Within" philosophy (there is also a book of the same name). Our instructor was great -- very down to earth and gave us lots of pain-coping techniques, but the main benefit of for me was the emotional/mental preparation that the class provided. I just felt much more ready to face labor having worked through some stuff beforehand.
IME, it really all is in your head (how you experience and handle the pain), so, in my opinion, no technique or method is sure to work until YOU feel ready and able to do it, so try to figure out what your needs are around labor and birth and find ways to meet those needs... and stay compassionate with yourself and with whatever ways your needs change from now through the moment of birth. We never do know what is going to happen or how we might respond!
I was prepared for labor to be the most painful thing I ever experienced but I fundamentally believed in my body's ability to do it (and had complete trust in my husband, my midwives and my doula/best friend). When the time came, I just sorta "left" my body behind to do the work. Don't get me wrong, I wasn't all blissed out orgasmic or anything (though I don't doubt that happens for some women) -- I was moaning and groaning and squeezing my poor DH to death -- but my head wasn't involved in the pain. I am not sure how I accomplished that feat, exactly, but I think it was the mental preparation I did beforehand.
Hope this helps -- best of luck to you on this journey toward your birth! Find the ways and ideas that resonate with you and go for it! I also recommend a class (in whatever method you choose) -- having the time to focus solely on the birth with my DH was invaluable.