I am looking to replace my old Pentax Optio WP camera. Five years ago, it was great. Now, it's archaic technology. My budget is somewhere around $400, maybe a little more, maybe a little less. So should I buy a high-end point-and-shoot camera? (Nikon P510, for example, or one of the Canon Power Shots.) Or should I buy a low-price DSLR? (Canon Rebel T3, for example, which is about the only DSLR near my price range.) Any thoughts? Feel free to offer advice on specific cameras, whether they worked for you or didn't, but I'm really looking at picking a point-and-shoot or a DSLR. If it matters, I know very little about photography, and most of what I shoot will be outdoor scenes on my bike trips.