[HopeydaFish]

Keeping them indoors is definitely the way to go. Just make sure they have lots of toys to play with (preferably things that are small enough that they can "hunt") and they'll be fine.

Keep their nails clipped short and you won't have as much damage to furniture if they do decide to scratch.

Make sure you have plenty of scratching posts around, preferably one in every room the cats are likely to hang out in. Sprinkle catnip on the posts every so often to encourage them to use them.

When the cats are young is the time to drill it into their heads that they are not allowed to scratch anywhere but the scratching posts. Get a water gun and squirt them whenever they start scratching anything other than the scratching posts. However, try to squirt them without them seeing you do it. Cats are *very* smart and will figure out pretty quick that they'll only get squirted for scratching furniture when you're around -- so when you're not around, they'll be scratching to their hearts' contents. Also, giving them a treat whenever they use their scratching post would help with positive reinforcement.

One more thing, if you're really affectionate and treat your cats well when they're young, they'll grow up to be affectionate and friendly cats when they're older. If you ignore your cats and/or don't treat them well when they're young, you might end up with aloof and ill-tempered pets.