Me and my parents want to go halfsies on a digital cam. Not sure how much to spend though. Probably around 100, unless that's a waste of money. I just need it to take pictures of my home theater, they need it for baby pictures. I don't think we need anything really good, just decent will do. Picture size? 640x480 would probably do. It's the quality that matters more. Anyway, what do you guys think? How much should we spend - with about $175 being the limit.