I recently purchased the convertible thinkpad case from IBM (
www.ezm.com) to supplement by PowerSleeve 15. This case is loaded with well thought out features:
PROs:
* A folding roller attachment! When you want to use this as a bag with wheels, you can attach the included wheel kit to the bag. When you want to travel light (wheel kit is about 1lb), you can leave the wheels at home. * This bag is one of the few I've seen with both wheels and a shoulder strap.
* Flip out flap for cellphones, blackberrys, and iPods allows you to access these devices without having to struggle with zippers.
* A removable accesories plate. You can put the thinkpad charger and other accessories into pouches on the plate and remove the entire plate from the bag if you want.
* Expandable storage compartment to hold stuff you just can't leave home without.
* A retractable sleeve that you can use for holding airplane tickets and business cards.
The two CONs are:
* Construction quality is good, but not at the same level as Tumi or Booq. The ID holder is especially cheap looking. EZM makes a higher priced line that I've seen in person, and those cases are built better. Unfortunately, I'm cheap
* Just barely big enough for a T42 15" with 9-cell battery. Some people may not be comfortable with the low margin for error.