ive been trying to find out all my options of for modding a 360. all im looking to do is play games thats ive downloaded and i dont plan on using live at all. ive seen alot of things on youtube showing how to do it from a usb but i they never specify if it needs to be previously modded. also when i look into flashing all the equipment is so expensive. is there a free way to do this? do i have to flash my 360 to do this? is my best option just to send it off to a service? or is there a cheap way to do it myself.