If you can keep it switched on long enough you can transfer all of your saved game data to a usb stick. Your online identity is safe along with other save game data, such as your gran turismo online progress, as this data is stored on there servers. If you buy a new ps3,you can then transfer your data from your usb drive to your new ps3,then create your ps3 acount with your online identity. He presto, no loss of data. Hope this helps :-)
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