I especially like the "this is *not* a diet" quote. Fitness is a lifestyle, not a goal to be attained and then thrown away. I hate people who only "get in shape" for a vacation trip (showin off on the beach) or to fit into a dress for wedding...as if being healty were the same as buying new shoes.
Whatever you do, it should be gradual (eff this "lose weight in 10 days! crap), and it should be sustained.