Oh, lol. I'm not sure which are the good ones, I'll leave that up to you. Just make sure the one you get is compatible with your old HDD. For example, assuming your old HDD is connected through IDE (ribbon cable), get an IDE to USB one. Read some reviews on them or something. Just make sure the one you get one that will work with your old HDD. The only things you need to check is size compatibility and connection compatibility.