You may get even better value from Dell if you go through the options for the system you buy and deselect the bits you don't want (3 year collect and return service, for example, is usually automatically included (at a price), but may not be something you require).
Be aware you will get the hard sell to go for Dell's insurance because of this - a phone call after about six months from an obnoxious scotsman was my experience. Called me stupid for not wanting to pay the price of a monitor in insurance!