I saw an ad for a Samsung digi-cam in the Esquire black book that intrigued me. It's time to move beyond my 2MP Nikon, I think. If it's not too big, I also like the idea of a 7x optical zoom. But are they any good? Anyone experienced with Samsung cameras? Is the user-interface relatively Mac-like or do they expect the user to know everything about photography just to get off a shot?