Hello, I'm kinda noob with PSP related stuff, in fact I never had one or even played in one... But recently I decided to give it a try. I want to play PSP games, PSX, emulate GBA, SNES and MAME, NEO GEO. What PSP should I look for? Every models and firmware are compatibles with CFW or I need to get a specific one or buy some kind of flashcart? I appreciate any kind of support. Thanks.