does it matter which mirco sd card to pic up? leaning towards the 16gb since i don't use much, mainly for music. Also after checking out some unboxing videos i noticed that the phone doesn't come with a headset. I found this weird, since i used my iphone ones for talking etc they were useful. If the phone doesn't come with a pair of decent headsets, which ones would you guys recommend with a microphone. Not looking for a bluetooth so thats out of the question.