I will be traveling to Europe with my 15" Powerbook in two weeks and I'm looking for a sleeve that I can put into my carry-on bag. I don't want to buy an entire laptop bag, so I'm looking for something that can hold my PB and a couple accessories, like an AC adapter and mouse. The three that I have been looking at are the Incase Neoprene Sleeve, the Incase Nylon Laptop Sleeve and the Marware Sportfolio. The Incase Neoprene Sleeve looks nice, but it seems like it's too soft and doesn't have much protection in case of an impact. The Marware Sportfolio looks better with a plastic shell and a handle, making it easier to carry it around. Can anyone recommend any of these?