I've got a nice Pentax DSLR that I like for more creative shots, but I'd like something smaller that I can fit in a fanny pack or a jacket pocket to take to dinner or to carry when I'm not in the mood to lug around the Big Guy. (I have a little Canon that does a decent job, but the 4x zoom is very limiting.) I'm reading very good things about the Lumix ZS6 or 7, and have spotted some very sweet deals on Amazon, to get a refurbished model for about $150. That's a great price. But is it really worth it? Would I do better to spend another $100 to get one that's brand new? Any experiences out there buying refurbished P&S cameras? TIA!