Bestbuy offers Targus 17" Dual-Fan Lap Chill Mat for $15.49 (reg $53) with free shipping.

Product Description:
This Targus Dual Fan Lap Chill Mat AWE83US cooling systems holds most laptops up to 17" and features dual USB-powered fans and a ventilated grille for optimal performance. An ergonomic tilt design and soft, cushioned bottom provide a comfortable feel.

• Compatible with most laptops up to 17"
  For use with your existing laptop.
• Dual USB-powered fans
  Along with a ventilated grille help dissipate heat, so your laptop remains cool during operation.
• Ergonomic tilt design
  Plus a soft, cushioned bottom for comfort during use.
• Oversize rubber pads
  Help prevent your laptop from slipping.
• Cable management
  Keeps your workspace neatly organized.