If you still don't know what to present to give meon my birthday, here's another idea: a signed copy of one of the most iconic photos ever taken, and the camera that took it, will both go on sale at the WestLicht Photographica Auction in Vienna. The photo is a signed print of the iconic V-J Day "Kiss in Time Square" photograph taken by Alfred Eisenstaedt, and the camera is the Leica IIIa rangefinder that he used right up until the day he died.
More on the Westlicht Photographica Camera Auction website.