Cats are very easy and most tend not to mind being alone (although some are social). If I were you I would look at getting an older cat though (maybe from the RSPCA), rather then a kitten. Because although cats are easy, kittens tend to be very social, like lots of attention, pull things (like curtains and carpet) to bits, and don't like to be left alone for long periods (like work hours). generally they are much more maintainence if they are under a year old - although if you have a couple they will entertain each other.

(I say this after chasing my kitten away from the washing we have hanging inside, for the 12th time in the last 5 mins)

I am very much a cat person. I currently have a 7mth old kitten and a 7yr old cat. (plus a labrador out the back). The older cat will basically look after himself - we just need to ensure he has access to food and water - oh and kitty litter (the one time he couldn't get into that was not a pleasant experience).