Both my daughters were transverse, and I had c-sections for both. In fact, with my second daughter, I spent 5 weeks in hospital before her birth as the cord was below her, so if I had gone into early labor the cord would have come down first...not ideal, as you can imagine.
The doctors tried to turn her several times. I found this procedure incredibly painful, and ultimately a waste of time as she would just move back to transverse by herself (which was also painful!!). I feel that the baby is in this position for a good reason - either because of the shape of the womb, or the cord length (she had a very short umbillical cord) and that trying to move them with force is unecessary. If the baby moves into head down by himself, great...and like the other Moms advise, crawling around on hands and knees may help. But don't lose heart if it doesn't happen. Good luck!