There are good parent guides in the eBooks section of GYE. That should give you some good material.
guardyoureyes.com/ebooks/category/prevention
You say " I realize the most important things will be taking care that images, whether computer or other media, are not available in our home, as much as possible."
I'm not sure I agree -
. Raising emotionally healthy children (something I am not qualified to talk about) is probably the
most important thing. Imagine parents that are controlling and overbearing. The child is likely to rebel. Now, the parents were VERY CAREFUL to NEVER let the child see anything inappropriate. The child now rebels by doing exactly those things.
Dr Sorotzkin tells a story about a father that was that way, and his kids were going off the derech right and left. He said that he was having emunah problems because how could Hashem do this to him if he is so zahir in mitzvos?! He was clueless that his stringent attitude was pushing his kids off the derech!
I realize this is an extreme case, but I'm just trying make a point.
Obviously, it is important to eliminate bad influence as much as possible. I am only taking issue with the words "the
most important thing". I'd say - "second most".
See this eBook
guardyoureyes.com/ebooks/item/gye-protecting-our-youth-experts-speak?category_id=149
I especially like the Dr Sorotzkin and Rabbi Lawrence Kelemen parts.