I know that Brenthaven has a Fusion Flex bag for over $100.00 now but I read a review that it's a bit too large for "smaller" people, and I am one of those

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I'm now looking at their exclusive 12" laptop bag for my new iBook/Powerbook (haven't decided which of the two to get but it will definetly be 12") - the Brenthaven Fusion 12 Messenger Case.
Can anyone comment on this bag or are there any known reviews out there for it?
Thanks!