Hi Digger,
Don't know if my post is too late. I've read some part of the threads and they recommended to you the DVD Decrypter tool. I concur that this is an awesome tool. One tip though - even if DVD Decrypter can rip some DVD's with security key, sometimes it fails. What I usually do is play the DVD for 1 minute on the same machine I'm ripping. This way, the keys get stored somewhere in the memory. I usually play it with PowerDVD, however, this is not free. So once I've played it, I closed PowerDVD then I run DVD Decrypter. This now creates vob files. Then to make it cleaner, I use DVD shrink to create an .iso image file of the .vob files. You have to make sure though that your movie player in your HTPC box supports playing of .iso files. Most of them does.
I'm also going to try electron's tool. It's the first time I've heard it.
Neil