The Dell Latitude E6400, the update to theD630, packs in all the essentials needed to keep road warriors productive on the go: a speedy Intel Core 2 Duo processor, long battery life, and a host of security and durability features. Factor in the revamped design, which replaces its predecessor’s stodgy aesthetic for one that’s much more streamlined and visually appealing, and you have an excellent notebook for demanding business users.