Lacey does not make drives. . . they package third party drives in their own enclosures. major Drive manufacturers are Seagate, Western Digital, Samsung, Hitachi, Fujitsu, Toshiba. Packagers of external drives tend not to source the newest/quietest/fastest drives on the market. . . but the most attractively priced. There are now 500GB drives available in 2.5 inch format from several major manufacturers, including Seagate, Western Digital, Samsung, Hitachi. Seagate even sells a FreeAgent Go external that uses its 500GB 2.5 inch internal drive. I personally prefer to source naked OEM internal drives and mount them myself in external enclosures of my choice. . . I like Vantech/NexStar enclosures for fanless solidity and looks. I have recently purchased a Seagate Momentus 2.5 inch 7200 RPM 250GB internal drive and put it in a Vantech enclosure. . . I use it in my very quiet office for backup. . . and I can't hear it spinning while it sits 14 inches from my left ear. Seagate Momentus 2.5 currently has the lowest latency on the market for this category, at 4.17ms. I have just ordered the 320Gb version. . . and I expect we may see a 500Gb Momentus 7200 version in the next several months. The current Seagate 2.5 inch 500Gb drive has a lower rotational speed of 5400 RPM and a latency of 5.6ms.
Http://www.newegg.com
sells most of these wonderous critters. a set of 3 sorbitane feet under the enclosure would quiet things down even further. G.