Dell has an instant $70 off their 2407WFP UltraSharp dropping the price to $599.00 and free shipping. I don't know how long the discount lasts.
Dell's product page
AAA (triple 'A') also has a 6% coupon for Dell for members.
AAA 6% Dell coupon
EDIT:
After trying to use the 6% AAA discount, it looks like they make you use the special AAA Dell site, which lists the price as 669.99, thus making the coupon useless because it's just cheaper to get it off the normal dell site without the coupon.
Dell's product page
AAA (triple 'A') also has a 6% coupon for Dell for members.
AAA 6% Dell coupon
EDIT:
After trying to use the 6% AAA discount, it looks like they make you use the special AAA Dell site, which lists the price as 669.99, thus making the coupon useless because it's just cheaper to get it off the normal dell site without the coupon.