I'm thinking of getting a cat.  Do you know much about cats and what breed I should get?
I'd try to get a Manx cat if possible. I love cats because we have a lot of mice around here and they're very good at hunting vermin and other rodents.
Are they easy to maintain?  For example, do you need to take them out on walks daily like how dogs need their exercise?
Well some are house cats where they just stay inside all day, but you can let them outside and they'll walk themselves and be able to find their way home probably.
Sounds dangerous to have them out about by themselves.  What sorts of food do I need to feed them?  Also - do I have to cat train them to pee/poo outside?
Well they have quick reflexes and sharp claws, so they can protect themselves outside. Simple cat food is fine and you can train them to use a litter box.
Sounds like a dream pet - they catch mice/rodents and effectively is self-managed.  Sounds like a great idea.  Can you let me know why I would want a Manx cat and not other breeds of cats?
Well Manx cats have elongated hind legs so they're great at hunting vermin, and I like how they have a small tail or even no tail at all, so I don't have to worry about them getting it injured.
Do they shed a lot of fur?  Also, can they sleep on their own or will they sleep in our bed?
, but poorer color vision. Cats, despite being solitary hunters, are a social species. Cat communication includes the use of vocalizations including meowing, purring, trilling, hissing, growling and grunting as well as cat-specific body language. Cats also communicate by secreting and perceiving pheromones.
Female domestic cats can have kittens from spring to late autumn, with litter sizes ranging from two to five kittens. 
Domestic cats can be bred and shown as registered pedigreed cats, a hobby known as cat fancy. Failure to
, but they can be hyper and more active than many other breeds. For this reason these dogs do best when they are exercised regularly. They are cool weather dogs and can become easily overheated in hot weather. If socialised with cats and puppies, they may get along fine with them; if not, care should be taken in introducing them to cats, as the breed has a very strong "prey drive" because of its vermin-hunting origin. Wheatens are extremely friendly and loving pets, and get along well