Over the weekend my SD card broke, The slider that places the card on lock broke off in the lock position and I can't place it back on. So I'm stuck with an 8GB SD card that I can only read from. So I'm in the market for a new card. I'm gonna start doing portraits and test on maternity photos so I know I want to shoot raw. Do you guys have any recommendations on what card to get? I'm currently shooting with a D300s. Thanks!