Link and FMT, I think we've got 'Tuxedo' cats. Probably a generic breed.
Anyway, here's mine.His various ages and stages:
Oblivious
Curious
Mischievous
Murderous
I'm actually not completely sure what's going on in that last pic -- maybe the flash
And yeah, mine acts more like a dog than any other cat I've known (owned 2 before). He follows us around like a dog would. But the biggest thing is... he plays catch. Seriously. There's this little mouse that he likes. We throw it here and there and he'll chase after it. Most of the time he picks it up in his mouth, carries it back to us, drops it, and meows. So we throw it again... rinse/repeat. He's also incredibly vocal. Never shuts up, and seems to have a meow for over a dozen situations.