You can find a cheaper laptop, but not a better one. Every Apple MacBook Pro is carved from a single block of aluminum, making it strong and light (4.5 lb.; 2 kg). A revolutionary pair of graphic chips lets you play Call of Duty 2 until your five-hour battery dies.
Price:$1,999
More info: apple.com/macbookpro
Small enough to fit in a pocketbook, this 2.3-lb. (1 kg) ultraportable comes in two flavors: Windows XP ($399-$449) or, for maximum open-source coolness, Ubuntu Linux ($349). You can stick your camera's SD card right into its media reader, and the bright 8.9-in. (23 cm) screen will show off your family photos (or YouTube faves). Tiny as it is, you don't have to scroll around to see full Web pages as you would on a phone, though the compact keyboard does take a little getting used to.
More info: Dell Inspiron Mini 9
Electric cars were always environmentally friendly, quiet, clean — but definitely not sexy. The Tesla Roadster has changed all that. A battery-powered sports car that sells for $100,000 and has a top speed of 125 m.p.h. (200 km/h), the Roadster has excited the clean-tech crowd since it was announced in 2003. Celebrities like George Clooney joined a long waiting list for the Roadster; magazines like Wired drooled over it. After years of setbacks and shake-ups, the first Tesla Roadsters were delivered to customers this year. Reviews have been ecstatic, but Tesla Motors has been hit hard by the financial crisis. Plans to develop an affordable electric sedan have been put on hold, and Tesla is laying off employees. But even if the Roadster turns out to be a one-hit wonder, it's been a hell of an (electric) ride.
You can find a cheaper laptop, but not a better one. Every Apple MacBook Pro is carved from a single block of aluminum, making it strong and light (4.5 lb.; 2 kg). A revolutionary pair of graphic chips lets you play Call of Duty 2 until your five-hour battery dies. 
