How do I back up my Motorola Droid?
Your contact -Gmail are already saved in GMail isn't it ?

And Photo, playlists are on the SD card, so just keep it / change it / backup it with a card reader

For app settings, some of them are on sd card, and if you use app2sd, all your apps are on the sd card

For your SMS, you can use SMS Backup + to back it up on GMail:



If you have a rooted phone, you can use Titanium Backup ★ root:



Good luck!