looking for a dvd ripper

One of the partners at work has bought himself a fancy new media centre without really understanding what was going to be involved in getting all the kids' dvds onto it.

Can anyone recommend a good, really simple dvd ripper/converter (doesn't have to be freeware) that I can recommend to him? I'm fairly happy with ImToo DVD Ripper that I use, but there are a lot of different options that you can play with. I want to be able to point him to something that involves as few steps and options as possible, while still doing a good job.