first of all, sorry to hear this happened to you. Years ago, it happened to me. It was about the same as you, they took some stuff, but left the brand new computer (which at the time was worth $2,000), my collection of case knives, and my shotgun which was loaded and in plain sight (i was under 21 at the time and didn't have handguns yet).
I know the feeling. It was hard for me to get a good nights sleep for a couple weeks. It is a feeling of having someone go through your stuff in an intimate way and not knowing who it was or what information they know about you now. I felt violated as I think you do too. I lived alone (college student), but it probably feels worse with you having a wife and kids.
My advice, even though you didn't ask for any, is invest in good "Grade 1" door lock. Having worked in the hardware industry for years (it put me through college), locks that have components made of solid brass are your friend. I like Kwikset grade 1 ultramax (shlage is easy to lock yourself out of your house). The locks come with a door jam reenforcer that makes the slide go into a solid brass sheath. the sheath is screwed into the door with several 3" solid brass wood screws. I forget the logistics, but the lock, with an average steel door and average door jam would require several 250# kicks before it opens. (enough time to alert you). Grade 1 are simply more secure. You can install them if you are handy, if not, hire a locksmith. In the future, remember that even though windows are not very secure, most buglars (something like 85-90%) come through the front door, like they did me and you, I think.
Thanks for posting this story. It reminds me of what I need to remain safe in my home. Good luck and remember, most, if not all, of what they took can be replaced. It could have been worse, and use it as a learning experience.
I suggest to other members, take action before something like this happens to your family.
Good Luck,
Trip