I know i am a noob with PSPs and i did attempt to read the ***The Motherload of PSP Guides*** before i began asking my questions, but before i even start researching on getting firmware on a psp i have to know something, that is can i go out right now and go to wallmart/zellers/sears (im canadian) etc. and buy a psp and will the custom firmwares(that lets me played downloaded psp and ps1 games) and home brew applications work on it? (if not, what do i do?) Can all new PsP's be downgraded (honestly i am not fully aware of what that means)? Finally a couple of people tell me there are high rates of the psp getting ruined if i downgrade, use custom firmware or home brew applications, is this true?