For those naughty people with banned consoles, or less naughty people without XBL, here is the update
http://rapidshare.com/files/74216557/UPDATE-2.0.6683.0-HDD.rarExtract that file and burn the directory $systemupdate to the root of a cd or dvd.
Pop it in your 360 and reboot. - This doesnt include the media update. You need an xbl connection for that.