I just wanted to post my agreement with Ewewho. The outbreaks themselves do not cause the virus to be transferred to the baby. Only contact with a contagious outbreak during delivery will do that. Of course, you can opt for a C-section, and that way you will not be transferring it for sure. However, a natural birth is preferable on all other counts, everything else being normal with you and the baby.
Of course, you want to be cautious as you can due to the fact that we can be contagious when we don't have outbreaks due to viral shedding. So there is still no guarantee about a vaginal birth. However, my clients with genital herpes do deliver vaginally and so far no issues.
I wanted to mention that (I am a childbirth educator, by the way...) water birth is another choice that people can make. I have not personally seen this used for the purpose of making a birth safer for a mom with herpes, but it is done and the theory is that the water dilutes anything that is going on and therefore makes it safer. You might want to look into that. Get information from Waterbirth International.
Bottom line is that just the fact of having an outbreak and being pregnant is not a cause of tranference of the virus. The baby has to come in contact with the virus in the birth canal or vaginal area. And yes, a C-section guarantees that safety, but please read up on the entire topic of C-sections vs. vaginal birth for the pros and cons there and make up your own mind -- knowing that it is possible to have a healthy baby, there are precautions you can take and that you are quite capable of educating yourself and making good decisions.
Hope this helps a bit.