A new report issued by the Alliance to Save Energy, a Washington, D.C.-based not-for-profit organization that promotes energy efficiency worldwide, and 1E, a British provider of Windows management solutions, provides some interesting insights into the relationship between typical computer usage and energy costs.For example, did you know that a company with 10,000 PCs wastes more than $165,000 a year in electricity costs if 60 percent of computers are left on overnight?Here are some other interesting points noted in the PC Energy Report 2007:Out of 104 million office PCs in th