Illustrations are good! I should check half.com for a used copy of that or something similar. I have a basic set of dumbells (3,5 and 8 lb. weights), but mostly have just used a few articles from websites. A book would be great!
3, 5 and 8 should be enough to do most of the workouts, though for the legs you might need to get a pair of 12s. It gives really detailed instructions about how to to the lift, with at least two pictures. And I like that it says, "Do 12-15 of these, then 15-20 of these," and so forth, I'm not good at figuring out what to do on my own.