Dell is offering 20% off Latitude E6400 & E6500 laptops priced $999 or more when you use coupon code KXP?D?823V?J47 at checkout.  Alternatively, if you're interested in a E5500 or E5400, you can use coupon 8T6BD3TW2Q6BBX to get an extra $50 off any model priced at $750 or more.