Apple has shined up its MacBook line with an all-new aluminum enclosure, an nVidia GeForce 9400M graphics processor, and an LED-backlit display. Prices start at $1299 for these MacBooks, which measure 0.95 inch in thickness, weigh 4.5 pounds, and sport a 13-inch display. The new MacBook is available in two models. The entry-level version features a 2-GHz processor and a 160GB hard drive. The second, higher-end version has a 2.4-GHz processor and a 250GB hard drive, and comes with a backlit keyboard.