Originally posted by: ZetaEpyon
Having just gotten a kitten about a month ago myself, I  agree with most of the comments and tips in here.
As far as getting a kitten from a shelter, I don't see how that could be any more expensive. In fact, it may end up being cheaper, if the kitten has already gotten some of its shots. Additionally, it'll probably already be litter trained, so that's one less thing to worry about.
Whether or not you want to have the kitten declawed is of course a decision that is yours to make. I decided not to get mine declawed, but my family has had three cats in the past that were (two on the front paws only). With a scratching post and appropriate toys to play with, he hasn't really caused any damage to my belongings. Most of the damage was to my own skin early on, but trimming the claws and training helps a lot with that. 
The biggest problem I've had so far is him trying to rub my legs, even while I'm walking around. Though, after getting kicked a few times in the process, I think he's starting to catch on that it's not such a great idea. 
And, because any thread about kittens really needs pics...
My kitten - Hobbes 
Oh yes, and about the time at work. It's been fine with my cat so far, I think he ends up just sleeping most of the day anyway. Do expect it to be very ready to play and want lots of attention when you get home each day, though.