I have had my D700 for 10 years. Just recently things are feeling a bit off. Nikon does not service these any longer. I have needed to upgrade for sometime anyway. I am hoping to gain some insight from you and your experience. I shoot mostly families, high school seniors, the occasional wedding and events. I am also in the basketball gym often! HA! My go to glass is the 24-70 and the 105. Any suggestions would be greatly appreciated!