Here is a great plugin that will help you backup your wordpress to DropBox or Amazon S3 account including your database.
Meet Hot Backup Manager
Here are some of the features you will get with this wordpress plugin
- Database and file system backup generation.
- Scheduled backup generation.
- Ability to restore previously created backup file.
- Upload backups to remote FTP host.
- Save backups on Dropbox or Amazon S3 servers.
- Email notifications and backup attachment.
- Ability to migrate WordPress instance on another host.
- Full clean up on deactivation. No garbage left.
- Auto update, when new version released.
Signup for your Free DropBox
Download Hot Backup Manager