I want to get another battery for my camera (NB-2L), and I've been looking on eBay for one. Is there any reason not to buy a generic battery? They are considerably less in price, so I was wondering if there is any reason not to get one of those. Also, can anyone recommend any worthwhile accessories for the camera? I've got an extra card (192MB) and a carrying case so far. Just curious as to what else I can spend my money on! Thanks!