For those of you interested, these are on sale today only at the Dell website for $199.
http://accessories.us.dell.com/sna/sna.aspx?c=us&cs=19&l=en&s=dhs&~topic=daily_deals_available&~srd=true&sk=daily_deals&scat=prod
http://accessories.us.dell.com/sna/sna.aspx?c=us&cs=19&l=en&s=dhs&~topic=daily_deals_available&~srd=true&sk=daily_deals&scat=prod