I always have this problem, memory capacity vs battery life. I have 2 Nikon batteries and a 4gb memory card. Its quite frustrating that usually my memory gets full even before my 1st battery reaches da limit. So I'm planning to get a 8gb or 16gb memory card instead. Which suits my battery capacity more? Photo ratio would be 20% RAW, 30% jpeg flash and 50% jpeg w/o flash. Any memory card brands and models in specific to recommend?