I'd like to see a comparison of the Hitachi, Samsung, and WD 250GB 5400RPM 2.5" drives. Looks like Hitachi's new 2.5" USB external drives (except for the backordered 250GB model) are already plenty in stock at Best Buy stores since June 3rd.
Here's what I found in pricing:
Samsung 250GB SATA = $239.99 at NewEgg (in stock)
Hitachi 250GB SATA = coming soon, assume similar price as Samsung?
WD 250GB SATA = coming soon, $199.99 estimated
Hitachi 250GB USB = $249.99 at BB site (backordered 1-2 weeks)
WD 250GB USB = coming soon, $199.99 pre-order
From the specs, it looks like the Hitachi trumps the WD by having faster media transfer rate, lower seek, lighter weight, considerably lower read/write and idle power draw, and SATA-300 support (or SATA-150 with encryption). Samsung seems similar to WD with an even slower media transfer rate, though its low power draw levels are closer to the Hitachi's.
Fujitsu has a 300GB 4200RPM drive but it's 12.5mm bulky and doesn't save that much power draw compared to the Hitachi 5400RPM.
Is the above a reasonable assessment?
P.S. For use as a USB drive, I'm interested in the peak startup power draw (lower level might increase the chance of starting up the drive from a single USB port in the real world, though technically it will always exceed the 2.5W USB power specs). Hitachi is at 5W, Samsung lists 4.5W, and WD does not seem to list its figure?