Hi all, I'm looking to replace my old, buggy and barely functioning Samsung Galaxy S. The budget is up to 400$ and the key features I want are: 1) A fast and responsive deice(Good CPU, RAM, Touch response etc.) 2) A good camera 3) Not too big: Glaxy S3 size is the maximum, an iPhone 5 size is great. 4a) A popular model so that online support & accessories are easy to access 4b) I think It has to be Android or iOS for the same reason as 4a. 5) this is not exactly a feature but I will point out that I live outside of the US so I need an unlocked or at least an unlock-able phone. 6) New phone (not used). So far I think the Galaxy S3 is a good option, but I'm open to suggestions. Also, if I choose to go with galaxy S3 - which one should I get? there are several models and so far the i9300 seems the best from what I checked out. Thx in advance, ZBBZ.