Guys, I've just recently thought about selling my Xbox 360 to help save money for a Playstation 4. Thing is, I've got a couple questions: -If I've already pre-ordered Destiny for the XB360, can I just walk into GameStop and ask them to change my pre-order request from XB360 to PS4? -If I change my standard pre-order from XB360 to PS4, can I change my pre-order from ordering the standard game to, say, the Ghost Edition (provided it hasn't already sold out)? Will I be able to still only put down $5 for the Ghost Edition pre-order and wait to pay in full, or do I have to fork over the entire $150.00 when I go in and change my pre-order? [EDIT] Another question: -I've heard that Playstation's equivalent to Xbox's XBOX LIVE is free. Is this correct? If so, I think that'd save me a bunch of money and I'm all for that.