Hello. I bought this phone last week and I absolutely love it. I've been searching the forums and can't wait to upgrade Android and install apps. This is my first android phone and I like how it can be customized. Before I do anything, I want to purchase a memory chip for the phone. I want to install and run apps from the chip but unsure of which to get. What size, brand, and class do you recommend? I have a 8gb class 2 from my old phone. Is that good enough? I'm thinking about getting either a 16-32 gb. Thanks.