Two new 160Gb hard drives have been added to G-Tech’s line of G-DRIVE mini hard drives. From the release:

The 160GB Mini G-DRIVE features:
? Power via FireWire or USB bus - no AC adapter required
? High-performance 5400 RPM disk drive with 8 MB cache
? Dual FireWire 800 or FireWire 400 & USB 2.0 versions
? Ultra-portable and stylish all aluminum enclosure with built-in heat sink
? Compact size - just 4.9″ x 3.2″ x .88″ weighing less than 9 oz.
? Mac OS X and Windows XP compatibility
? 2-year warranty

The drives start at $569 and you can find them here.