i have a d5000 with a 18-55 and a 55-200. i used to use the 55-200 but now seem to be using the 18-55 more often. i love the wide angle shots now. when u got 15 megapixels u can crop like hell. ive gotten some pretty decent aquarium pics wit the lens too.
the kit lens should be great for family shots. if ur gonna be shooting sporting events , or indoor without a flash i would go with a faster lens. something around f1.8, but if its gonna be basic portraits and family photos the 18-55 should be nice.