I am a complete beginner... all your crazy lens talk and numbers and models confound me. I have... um... a Canon Powershot elph thingie. Not the current SD400, I think it's just an S400? I got it fall of 2003. I've noticed in the last few months that some of my photos come out looking really grainy. Is that a sign that my camera is failing? Or have I simply accidently clicked on an option that has changed the way my photos come out? Should I get a new camera? (Mine feels so heavy in comparison to my boyfriend's new SD400.) And if yes, then what's a good buy for a total beginner? I really don't have interest in a bulkier camera... I prefer slimmer and lighter (in weight) cameras, and hopefully one w/ that neato, um, macro option (the thingie that lets you take detailed close-up photos). Price range probably ~$200 to $300 (but if there's a decent one for <$200 I'm definitely much more game!).