With Windows XP going end of life as of April 8th, 2014, businesses are most often replacing their 4+ year old computers rather than attempting to load new Windows 7 or 8 on an old computer.
If you are in the market for PC replacements, there is a product that you *absolutely* must know about- Intel NUCs! These are astounding 4" x 4" x 2" mini PCs. The small computer comes with i3 or i5 processors, up to 16GB RAM, SDD drives, wireless, and ability to support up to 3 displays natively. NUCs can be used standalone or clipped onto the back of a flat panel display. These computers are game changers!!! NUCs have become incredibly popular and are ideal for many business functions where they often are a better fit than a traditional PC.