francis, good luck to you and some good advice that you have received. But I have to ask, you "love classic rock" which I view as an electric guitar genre. Yet, you are asking for advice on buying your first acoustic guitar. Certainly, you can go through the Guitar Tricks learning path with either an acoustic or electric. The basics are the same. But i would think when you get to the song learning the overdriven electric sound of the 70's might be a little more.........inspiring.

Again, good luck to you. Keep us posted on what you end up purchasing and your progress.