I didn't know they made a new revision of the WD studio. I actually think that e-ink display is kind of cool
. But unless it had a proven track record of working better with Macs on FW than the previous versions, I don't think I would go for it.
Personally speaking the Seagate drive is too bulky. I don't really want/need a dock for the HD.
I've been looking pretty closely at the G-drive minis and will probably pick one up in the near future. I will "retire" my current Passport to backing up my time capsule (it works fine on USB so no problem to keep using it) and regain FW800 speeds with the G-drive mini. It's a little more expensive but it seems to be well built and the other thing I really like is that it is apparently easy to unscrew the casing and replace the drive. That will come in handy when larger 1TB drives, etc. are cheaply available I can just buy a bare drive and keep on using the casing. It does not seem too much larger than the Passport.