Max Tool via eBay offers the DuroStar 3,300-watt Portable Gas-Powered Generator, model no. DS4000S, for $249.99 with free shipping. That's tied with our January mention and the lowest total price we could find now by $80. It produces a 4,000-watt surge and 3,300-watt running power. It runs for up to eight hours at a 50% load and features a 4-gallon fuel tank.