From custom computer maker Jinglehorse comes this new PC called the EcoSystem. Designed around the Core Duo processor and energy efficient components, the EcoSystem PCs are built to match the performance of their Pentium 4 counterparts while using 75% less energy. The basic Jinglehorse EcoSystem configuration uses no more than 44 watts while idle and an average of 75 watts while under full load. The makers claim that it's the most energy efficient PC available today. The EcoSystem PCs are also very quiet — lower power consumption means a cooler running temperature, so minimal fans are needed and are required to run less frequently. Prices start at $895. Thanks to Nick for the tip!