I'm interested in buying a Powersleeve14 for my 15" Powerbook. The thing is I'm still wary of using my credit card to purchase items from unfamiliar websites. I was checking the Booq's website's credibility and it turns out that Verisign lists them as Expired. The only other website that offers this sleeve is Semsons & Co. Inc. which I have also never heard of. Has anyone had any dealings with them? I'm considering just going the safe route and buying the Crumpler 15" School Hymm off Amazon.