Gettysburg

While flipping through the channels this weekend I came across a program on PCN (Pennsylvania Channel) on Gettysburg. There were three shows, all of them were Park Rangers doing one hour battleground tours with lots of lecturing. I found myself glued to the TV and soaking up every word.

After it was all said and done, I think I found a new interest and would like to learn a little more. I know that private tours are available and was wondering if anyone has ever done one? How was it?

I saw driving tours as well as bus tours but they aren't what I am loking for. I think I'd like to check it out in the Spring/Summer and was wondering if there were any Civil War buffs that could recommend a book or two for me to read before making the trek out to Gettysburg?