How much memory do I need? I plan to email (work and personal), text, make phone calls, web browsing, take photos and video (which i would store on sd card) and use basic apps - groupwise, yelp, flixster, social media, news apps, ny times, westlaw, Evernote, calendar and conact apps and web browsing, I might play a couple of simple games like angry birds or scrabble type games. I can't imagine watching movies on the galaxy. Do I need 32 gb or should I save some money by buying a 16 gb and maybe a new card? TIA.