I've been too lax with performing DB backups on our internal servers.
Is there a simple command line program that I can use to backup certain databases in SQL Server 2005? Or is there a simple VBScript?
To backup a single database from the command line, use osql or sqlcmd.
"C:\Program Files\Microsoft SQL Server\90\Tools\Binn\osql.exe"
-E -Q "BACKUP DATABASE mydatabase TO DISK='C:\tmp\db.bak' WITH FORMAT"
You'll also want to read the documentation on BACKUP and RESTORE and general procedures.