Updated Aug 26/10
Find drive cases so you can build your own portable drive here
PORTABLE HARD DRIVES

LaCie Rugged All-Terrain Hard Drive
FireWire 800, FireWire 400 & Hi-Speed USB 2.
320 GB (5400 RPM) - $129 - in stock
750 GB (5400 RPM) - $199 - in stock
1 TB (5400) - $249 - in stock
500 GB High Speed (7200 RPM) - Reg $199 - Sale $175 - in stock
Successor to the popular Pocket drive, the Rugged has an internal shock absorber that will survive a drop from nearly 1 metre! Takes power off the Firewire bus, so doesn't require a power adapter.

G-Drive mini mobile drives max out the FireWire 800 port and provide fast
data backup and instant access to large multimedia and audio/video files
while on the go. The system is bus-powered, eliminating the need to carry
a bulky external AC adapter. A built-in heat sink silently dissipates heat
to ensure maximum reliability and data integrity. Uses a Hitachi hard drive
for ultra-fast performance. Includes protective carrying case and cables.
Connected via FW800, we got Write speeds of 64 MB/s, and Read speeds of
83 MB/s.
G-Drive Mini - 500 GB - 7200RPM - $189 - more in soon
Size: 4.94" x 3.19" x .875" / 125 x 81 x 22mm. Weight: 0.55
lbs / 0.25 kg.
Connections: 2x FireWire 800 / 1x USB2.0 / (FireWire 400 via included cable)
GTech now has warranty service for their products in Canada.
Find LaCie D2 desktop drives here
Find larger desktop G-Drives here
