We had every kind of reptile when I was growing up and the lizards were the easiest. They all eat live food, so she should be prepared to deal with that. Lizards generally eat meal worms, wax worms (they can be kept in a container in the fridge) or crickets. Snakes eat mice. I know I couldn't deal with those cute little mice being eaten by the snakes my brother had. It's still not something I'd be willing to do. Also, snakes can get large - although not a king snake - and then you have to decide what to do with them. I think your husband's dislike of snakes is probably a good thing in this case!
From what I've read, bearded dragons are good first lizards and are pretty hardy. We had anoles, blue bellies, horned toads and several other species and I have to say, they're nice, quiet pets, but they aren't terribly interactive. They rarely develop an individual personality. The smaller lizards tend to be fine on meal or wax worms and that's the easiest food. In my experience, crickets (much like hamsters) spend their entire lives trying to get out of whatever container they're in. If you're not careful, you could have a house full of maturing crickets. They generally eat the young ones and those don't chirp, but they eventually do and you don't want that to happen when they're loose in your house! Believe me, I speak from experience on that!