What features are most important to you guys in purchasing a case or sleeve for your MacBook Pro's? We are currently in the design, development and prototyping stages or creating sleeves specifically for the MacBook Pro line and what to know what exactly it is that you guys, as consumers are looking for. One thing we're looking to do, is NOT utilize a zipper - or metal of any type. As users ourselves, we've experience scratched cases first hand, not traveling that route. We're looking to launch, using some fantastic full-grain leathers that we've been fortunate enough to source given our vast experience in the footwear & apparel materials industry. I think you'd find the quality to equal that of some "designer" hand bag companies - with the added costs. So.......lets have it.....what do you guys like.....and just as important - what do you not like?