We're buying a used 10D for our business and I have five days to learn how to use it. We have no manual for it but I can download one. Is there anyone here willing to tudor me on the basic camera operation? I know photography like the back of my hand but I'm a noob to digital photography. I need to know how to set the white balance to tungsten and daylight. I need to know how to use the TTL meter and how to override the settings. I also need to know how to DL the pics and approx. how many pics I can shoot in RAW on a flash card. Thanx.