I agree, 1GHz Duron (Morgan) is the best deal for $46 shipped. It overclocks to 1200MHz easily and clock for clock is very close to a Thunderbird in performance. An added extra is that it runs much cooler. The Celeron 1.0a is also a good choice, about $69 shipped and hits 1400MHz easily. You can get an ECS motherboard that will run it at 1333MHz for $50 shipped. But I prefer the Morgan platform because of DDR performance, you can unlock the Morgan and lower the multiplier and raise the fsb to at least 133MHz for 266MHz DDR speed.