Ebay offers  Craftsman 3000i 3000W Portable Inverter Generator for $509 (reg $939) with free shipping.

Product Description:
The craftsman 3000 portable inverter generator is the perfect on-the-go solution for camping, tailgating and other outdoor activities. Featuring advanced technology, 50 percent more starting capacity allows outdoor enthusiasts like you to do more with less. Start your favorite motor-driven essentials using quiet and Clean Power you can take anywhere.

• Built in Handle - Easy mobility; carry with one hand
• Steady power - Our technology makes safe, clean power for your electronics
• Easy start - Start/Stop/Choke dial makes starting quick and easy
• Boost of Power - 50 percent more starting capacity allows you to do more with a smaller product
• Ultra Quiet Design with High Performance - Perfect for camping and tailgating