Microsoft Zune 4GB / 8GB Leather Case with bonus screen protector belt clip
works like a charm. 2 minor issues that you may have with any other 'protector': due to microsoft's stupid design clicking on the corners of center black wheel is made more difficult becuase it is somewhat sunken even more due the width of the silicon case.  similar issue may happaend with you earphone/audio plug. microsoft made the jack for the plug so 'deep' withinn the zone box so that almost any earphone's plug must be pushed an extar micron. The silicone case has the earphone whole somewhat on te small