I am getting a Droid 2, today, buying from a woman who used it for a month, but has to sell. She is keeping the sd card that came with though cuz she has stuff stored on it. I am wondering if my 2 gig card I already own will be ok in the Droid 2 or if I need to get a 8 or 16 gig, and if so, what kind is best for the Droid 2 phone?? There are so many choices, I just don't want to waste time or money with trial and error!!