There are several good and recommended vendors of screen protectors for the BlackBerry. These have been mentioned over and over in the threads at BlackBerryForums.com
Service Award Silicon Valley TDK Semiconductor Corp Crystal Paperweight W/ Stand
$295.00
Western Electric Bell Systems Semiconductor Rectifier + Module Cards Lot
$137.41
VTG 1959-62 PSI, PACIFIC SEMICONDUCTORS EARLY TRANSITOR CATALOG/BROCHURES/PRICE
$59.99
Historic 1962 Fairchild 2N1613 Transistor: The First Planar Device Ever Produced
$25.00
IBM Framed Silicon Si Semiconductor Wafer Shadowbox Diorama Desk Accessory 2005
$36.98
99.99% Silicon Metal 14 Semiconductor Monocrystalline Si Block (50g)
$9.49
TS2901 Thomson, Bit Slice Microprocessor, Tested working unused, USA Shipping
$5.99
National Semiconductor Logo Ballpoint Pen
$1.95
VTG 1970 ZENITH COLOR TV/TELEVISION SEMICONDUCTOR KIT SPARE PARTS/TRANSISTORS
$43.99
Lab-Volt Semiconductor Devices 91005-20
$37.50