Scheduling a Microsoft SharePoint Server 2007 backup

Scheduling a Microsoft SharePoint Server 2007 backup: "Command-Line Backup Tools
The stsadm.exe utility is probably familiar to users of WSS 2.0. It enables SharePoint administrators to back up site collections using the command line. This makes it easy to restore a site collection (or a single site) if necessary.
stsadm.exe still exists in WSS 3.0 and has been enhanced for Office SharePoint Server 2007. You can still use stsadm to back up a site collection as follows:
stsadm.exe -o backup
-url
-filename
[-overwrite]
For example, if I want to back up my site collection that exists at http://myserver/sites/, I would issue the following command:
stsadm –o backup –url http://myserver/sites -filename c:\mybackups\"