After much suspense, Apple today announced faster, slimmer, shinier iMacs, with 2.0-2.4GHz Core 2 Extreme Intel processors, up to 4GB RAM, ATI Radeon HD graphics cards, up to 1TB of storage, 802.11n, and Bluetooth 2.0 built-in. A faster 20-inch iMac @ $1,199 moves into the market space of the 17″, another 20″ with a faster ...