new T400s. Sure, it's slimmer, lighter, and all around sleeker than big brother, but it's still a ThinkPad, and it's still tough as nails. You might think of it as the internals of the T400 stuffed into a slightly thicker version of the X300's case -- it might not quite fit into a manila envelope, but it's still pretty easy to forget you've got it in your bag. Of course, it's hard to cut down on size without sacrificing performance, and the T400s is no exception -- although our tester's 2.4GHz Core 2 Duo was more than capable of handling our day-to-day workload, the only graphics option is Intel's integrated 4500MHD chip, and that means hardcore image processing and most intense gaming are out. Good thing ThinkPad owners are all business, right?