I will probably also buy the 1000x card for "fast" shooting. I am just trying to avoid spending money for nothing. I have done that with other purchases...fast computer hardware that the software could not use, etc. So my question is whether the 1000x will actually allow me to shoot faster with the D800E. I assume, but do not know, that it will. I do not plan to use the SD slot. I shoot everything in raw without backup.