I have a confession to make: I've never owned a digital camera. I've played around plenty with friend's point-and-shoots, and I have picked up a DSLR on occasion too. But I never saw the point of paying $300 for something my iPhone could pretty much do well enough. Now that summer's coming up and the price of high-megapixel cameras is going down, though, I figure it might be time to pick one out for myself—on the cheap.