If you have been following the sound economic advice on the purchase of Windows 7, as provided by Gaj-It.com, then you may have been lucky enough to pick up a copy for the bargain price of £50 for the Home Premium version, and £100 for the Professional version. A snip considering the price of the full retail versions. We won’t go into what it costs to buy Mac OS X. And of course you may have found that the bargain price copies are in short supply.