Corsair CMFUSBAC-128GBGT 128 GB Flash Voyager GT USB 2.0 Flash Drive
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The Corsair CMFUSBAC-128GBGT 128 GB Flash Voyager GT USB 2.0 Flash Drive is available for $419.93 at Amazon. At Newegg.com, it is currently available for $399.99.
It has formidable speed- Sequential Read: 32.6 MB/s and Sequential Write: 28.8 MB/s. The speed is comparable to many portable 
harddrives and is more than 2.5 times faster than competing high-capacity USB flash drives.
It is durable - without any moving parts and a rubber housing, the Voyager GT 128 is water-resistant and almost shockproof, according to Corsair, to 1500G.
It is plug and play and needs no drivers, cables or adapters. The USB drive works with Windows, Mac OS X, and Linux operating systems. There is a ten year warranty.
Corsair has a well known reputaition for its USB drives and other storage drives. (The size of the Flash Voyager GT 128 is about a quarter of the size of most portable hard drives.)
Super Talent 128 GB USB 2.0 Luxio with Encription High Speed
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The Luxio 128GB USB drive from Super Talent also was released this summer. Amazon is selling three different ver
sions for $388.70 each. You can get the USB drive in Silver, Black, or wood grain, although it takes 4-6 weeks for the wood grain drives to be shipped. They may be being manufactured as requested. Newegg.com has a sale right now, and the silver and black models can be ordered for $324, with free shipping.
They have dual channel flash memory architecture with AES-256 hardware Encryption included. They support Vista ReadyBoost⢠and have an LED that indicates the power is on. The drives come with a limited lifetime 
warranty.
I found one user review at Newegg.com. They said it had good speed, great capacity, and the cap was a pain, as it only fits one way, and does not stay on reliably. He also complained that, although he did not need the encryption software, he was having a terrible time getting rid of it. He has been in contact with Super Talent for help.
Kingston's New 256GB Data traveler 300 USB flash drive
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This drive, announced just a month after Kingston added a 128GB drive to its product line, is currently only available in Great Britain- 
for a hefty $900 USD.
Up to 90% of the contents can be password protected. It has transfer speeds of up to 20 MB/sec read and 10 MB/sec write.
It is 2.78" x 0.88" x 0.65" in size, and can be used at temperatures of -32° to 140° F (0° to 60° C). It can be stored at temperatures of -4° to 185° F (-20° to 85° C).
The durable, capless design comes with a five-year warranty and is capable of Windows ReadyBoost⢠on Vista-based systems It is compatible with Windows Vista, XP (SP1, SP2, SP3), Windows 2000 (SP4), Mac OS (10.3.x and above) and Linux (2.6 and above),
Available only in the UK, it was listed at £532.28, and both the stores checked were out of stock. This could be due to the note on one of Kingston's websites that they were only going to be built to order. There was no information on how long it takes to get a drive built.
If you decide to get one of these very large capacity drives, be sure to get it through a reputable dealer, as they are among the most frequently counterfeited USB drives found. Take a good look at the pictures here, so you know what the drive you are buying is supposed to look like, and if pictures in an ad do not match, don't buy the drive, even if it is a bargain. The potential loss of your data far outweighs any savings you might get in a 'bargain' drive.