I have a few questions hopefully someone can help me with. 1. Im planning on buying a new Galaxy Note 2 and going to use the $45 Straight Talk plan, I know the data is some what not unlimited from what i've been reading but that's really not a problem for me. My main question is which phone is best to buy for the best performance etc. I believe I can just buy the At&t Note 2 and pop the sim that I bought from Straight Talk in it and everything works? But is there any difference if I was to buy a unlocked version off of ebay, speed, options or specs different...or is there a differnce in what I could get like 3G, 4G or HSPA (I don't know what that stands for?) 2. My best signal here is Verizon with At&t pretty close to same, tmobile or anything else isn't a option here. I have some friends on Straight Talk and some use Verizon and some use At&t towers from what they say anyways, so my question is do I have a choice in which towers I use? I would prefer to use Verizon towers of course but didn't even know if that is possible? Thanks, any help or direction is much appreciated. Since this is around a $700 purchase I just wanna make sure I get the best info I can.