Green Machine Guide
ComputerShopper magazine is currently featuring a guide on How to Buy a Green PC which was authored by Treehugger's own Jasmin Malik-Chua. The article walks readers through the most important aspects of environmental home computing.
The article is broken down into six parts: Buy a smaller computer, avoid hazardous substances (always check for RoHS compliance), check for energy efficiency, get an efficient power supply, find a good multi-core processor, set your software on power-save and, finally, make sure to recycle anything that might otherwise be thrown away.
As an introduction to environmental computer buying, I have never seen a better guide.
See Also ::How to Green Your Electronics the Treehugger Guide