Apple has added new storage options to its iMac lineup, allowing users to choose either a 256 GB or 512 GB flash storage drive as part of the order customization process. The new options are available as $300 and $600 surcharges respectively to replace the 1 TB traditional hard drive that is standard across all iMac models. Previously, the 21.5-inch iMac had not been available with dedicated flash storage options, only offering the standard 1 TB traditional hard drive and a $250 Fusion Drive option. Apple's Fusion Drive marries a 128 GB flash drive with a 1 TB traditional hard drive to seamlessly provide fast access to most-used files while also offering relatively cheap mass storage for the remainder of the user's storage needs. Those options remain available, but for those looking for an all-flash st