Noah's Mom,
Yeah, this is my first time having two cats and I've got to say, it's really cool. They run around chasing each other, and it's the cutest thing. The downside is that they sometimes fight and hiss at each other and it upsets me, but they don't seem to be really hurting one another. Oh, they also keep me up at night with their running around!
I think more than one cat is the way to go, though.