Yes you can get Verbatim one with Seagate HDD which is £5 cheaper, but there are some negative reviews about Seagate drive.
LaCie minimus - The World's Smallest USB 3.0 Desktop Drive
Interface: USB 3.0 (USB 2.0 compatible)
Transfer Rate: USB 3.0: up to 5Gb/s (600MB/s); USB 2.0: up to 480Mb/s (60MB/s)
Dimensions (WxDxH): 110.7 x 29.4 x 172.8 mm / 4.4 x 1.2 x 6.8 in.
Weight: 850 g / 1.87 lbs.
Warranty: 2-year limited
Minimum System Requirements
Computer with a USB 3.0 or USB 2.0 port
High-speed Internet for online storage
Latest version of Windows® XP, Windows Vista®, Windows 7 / Mac® OS X 10.5, 10.6
Minimum free disk space: 600MB recommended
LaCie Setup Assistant, LaCie Backup Assistant (PC and Mac),
Wuala 10GB Online Storage (1 year included)
USB 3.0 cable (USB 2.0-compatible)
External power supply
Quick Install Guide