Need help getting into PSP firmwares
Hey guys, my brother just bought a PSP phat, he's wanting to run emulators, games, and such on it. I haven't touched anything PSP-related since a buddy wanted Doom on his FW 2.0 PSP in feb '06. I'd been a heavy DS homebrew fan until I sold my gear this previous fall. So needless to say, I'm out of the loop.
I'd like to know what needs to be done to get homebrew running on his PSP, it's got FW 3.51 on it.(I can't find a definitive answer about that version) He only has one battery, and my two 1GB memory sticks(to borrow). He doesn't plan to play any new games soon, he just wants metal slug, some SNES, N64 and such.(he'd like to keep the web browser, if possible)
How useful are the custom firmwares over the standard Sony ones?
Also, what are the chances he could use USB thumbdrives, or his 8GB MP3 player as storage?
I know this is all noob talk, but I have searched, and got no answers.