hey guys i might b getting a PSP 4 Christmas and i was wondering how or wht i can do in chipping terms. so. a)is paying a modchip store 50 dollars for custom fimrware worth it? b)is there a way to install firmware without paying them? c)how do u put games on it ? do u do it through some blank UMD? Or use a micro sd like a ds flashcart?