Max Tool Sales via eBay offers the DuroStar Gas Powered 4,000-watt Portable Generator, model no. DS4000S, for $229.99 with free shipping. That's tied with our mention from two weeks ago as the best price we've seen. (It's also a current low by $76.) It produces a 4,000-watt surge and 3,300-watt running power. It runs for up to eight hours at 50% load and features a 4-gallon fuel tank.