Hi
I'd suggest working with a local cat adoption group to find a young adult cat that prefers being an only pet. If you got kittens I'd suggest two not one.
There are many fabulous cats out there looking for new homes that prefer to be 'The Cat' and not have any feline companions.
www.petfinder.com may help you locate one or locate a cat rescue group near you that can help you find one to suit your home.
You might find a more relaxed personality cat if you want a purebred would be a long hair such as a persian or himalayan or possibly a ragdoll.
Hope this helps you!
Cat Health, Behavior, Care Expert
30+ years cat owner, rescue, breeding, study of behavior & health care
Sorry I thought you wanted realistic information rather than advertising hype designed to sell kittens.
Top suggestion is an adult or young adult cat where you can see the personality and know up front what you are getting rather than getting a baby kitten that will need a lot of care and attention. Rather than hope the kitten you get will grow up to the personality you want (and even within a breed every kitten is different in personality) getting an adult would work out best for you.
Breeds that might work for you include the longer coated types such as
Persian which tends to be sweet and docile
http://animal.discovery.com/breedselector/catprofile.do?id=3080
Himalayan also considered calm and sweet
http://animal.discovery.com/breedselector/catprofile.do?id=2090
or Ragdoll which can get along well with other animals and again is sweet and docile
http://animal.discovery.com/breedselector/catprofile.do?id=3090
but you'd have to commit to grooming.
I'd avoid totally any breed like Siamese, Burmese, Occicat, Bengal, Tonkinese, Orientals, Abyssinians etc that are busy and active and need cat companions to burn off energy.
My feeling though us it may do best with a typical domestic shorthair available at shelters and in rescue groups all over and colors, patterns, size and personalities are so varied that you would likely have a choice of cats that would fit in your home.
I constantly see great cats at adoption events where they are listed as 'affectionate with people but needs to be only pet in home'. Which to me sounds exactly like what you are looking for.