I neeeeeed to know what kind of SD card to buy when i get my D50. I want it to read and write fast so as to not hinder the speed at which i desire to make exposures. In other words, i don't want to have to go through the hassle you go through with point-and-shoots where it takes like a second or more to make the exposure and then another 2 or three before you can make another exposure. reliability is always a must, and cost is most deffinitely pertinent PLEASE REPLY WITH YOUR ADVICE, (brands, sizes, read/write speeds, etc.) ASAP!!