IS there a way to tell if you buy a new 360 what drive it has before purchasing it?
Check this site outhttp://www.360drives.com/list
and this topichttp://www.xboxhacker.net/index.php?option=com_smf&Itemid=33&topic=808.0
Edit: You can read the lot # through the box so if you buy the right lot # theres a good chance you will get a sammy. And don't open box when you get it home, compare the tray and bring it back if its the wrong drive. Make sure to buy from somewhere that will take it back with no questions.