Ok, so I just finished fixing up my PSP, had it turn on and work fine, only to not be able to turn it off. My power switch broke (which really sucks cause it means I'm putting more money into a PSP I got for free, already replace the screen and joystick)), only question is where should I purchase the power switch + circuit board? I've seen it on consolezombie and dealextreem, but I don't know if these are trustworthy sites.