Hanaa-
In the $200 range you're going to be getting a consumer-grade camera and lens sold together as a kit (assuming you want to purchase new equipment). Most manufacturers have a starter set like this (Nikon N55 with a 28-80mm lens, Canon EOS Rebel K2 with a 28-90mm lens, Konica-Minolta Maxxum 50 QD with 28-100mm lens, etc.). With every autofocus lens I'm aware of, you can turn off the autofocus and manually focus the lens. These are not the most robust cameras in the world, but with proper care they should provide years of service.
You should be aware that the viewfinders on newer consumer-grade cameras are not the best for manual focusing. With the introduction of autofocus lenses, the manufacturers have saved money by simplifying the viewfinder because most people just use the autofocus...no need to spend more money on a high quality viewfinder if the camera is focusing for you. So your husband will be able to manually focus the camera, but it won't be the easiest thing in the world. It may take some practice, and it will add some frustration to the learning process, but if your husband's seriously interested then he'll learn how to do it (or he'll just rely on autofocus).
As others have stated, any Canon EF lens can be used on any Canon EOS body, including all Canon cameras with the name "Rebel". (EF-S lenses cannot be used on Canon film cameras.)
Which brand of camera you buy at this time isn't all that important. I would recommend that you buy either Canon or Nikon because they are healthy companies, they make lots of different camera accessories, and chances are good that you'll be able to buy anything you need in the future to build the camera into a full system capable of any type of photography that your husband might become interested in. This is not to say that other brands are not good (many are excellent), but (this is just my opinion!) I'm fairly certain that both Canon and Nikon will still be making lenses and accessories in 10 years time that share some level of compatibility with the cameras they sell today.
If you can convince your husband that an old manual focus camera is a better way to learn (personally I think it is, but I won't argue if people tell me I'm wrong...I'm tired of having that particular argument), then you can get him a camera that's compatible with your equipment. You'll both automatically have a backup camera available, and instead of buying him a "starter" lens you can share lenses and buy a more interesting lens when you buy "his" camera. Minolta made a lot of excellent cameras over the years (my girlfriend has an SRT-201 that I'm sure will outlive me) and they made many excellent lenses.
Best of luck with your decision, and I hope that your husband enjoys photography. (It's always nice to have a shared avocation.)
Be well.
Dave