PMobile picture storers

[pmg]

I have a Canon G1 and a couple of 128 MB CF cards. Usually this is plenty
for a week's trip but I'm heading off for a 6 weeks trip soon and will need
better storage. Considered buying more cards or taking a laptop, but these
picture storage devices (like Vosonioc X-Drive) look good. Anybody have any
opinions or recommendations (I'm in Australia)
Hoping for speed (USB 2?), rechargable (mains and car?), good screen details
(file info, space, charge), portability, reliability, card compatability (CF
a must, SD would be good too). Do any of the units allow you to download
back to a card so you can review the pics?

Pete