Why not migrate over an OS developed by a UK company Ubuntu/Canonical
Well technically Canonical have created a distribution as the development is world wide. I have used Ubuntu as my primary desktop in a work environment for just under 5 years now. In terms of substitutions:
* Ubuntu 11.10 instead of Windows 7
* Ubuntu 11.10 (with SAMBA, OpenLDAP + GOSA) instead of Windows Server
* LibreOffice 3.5 instead of Office 2010 (can now read Visio files as well)
* CUPS-PDF to generate PDF outputs
* Mozilla Firefox 10 instead of Internet Explorer 9
* Mozilla Thunderbird/Lightning 10 instead of Outlook 2010
* OpenProj instead of Microsoft Project
* GNUCash instead of Quicken
* Zimbra (or Citadel) instead of Microsoft Exchange
* Alfresco instead of Sharepoint
* MySQL (or PosgreSQL) instead of Microsoft SQL Server 2008
* GIMP instead of Adobe Photoshop
* Empathy instead of MSN
* Eclipse instead of Visual Studio
* Jira and Jenkins instead of MS Team Foundation Server
I can just hear the Microsoft supporters scoffing now. Not any longer. The dream IS possible. You do NOT need Microsoft OR Windows.(at all) - yes really (and yes I do swap documents/emails/messages and interoperate with people running Windows).
Instead of buying Windows licences - why not donate money to open source based companies (like Canonical or the Fedora Foundation - much better value for money.
FUD fail. It is no harder to run a PC with a modern distribution of Linux than Windows - in fact many ways much easier.
Have a look for yourself:
http://www.libreoffice.org/ (an office suite)
Just think how many £millions we could save in schools and government if we migrated from Windows to Linux - and not be tied to one (nearly) monopolistic vendor.
Instead of scoffing - why not (absolutely legally) download a copy of a Linux distribution and TRY IT!.