>>If they are happy to go with Windows 7 Professional rather than ultimate, they could try to get the action pack from MS: https://partner.microsoft.com/40016455
>
>Thanks for the reference
>
>We are trying to clone what I have on my development PC. We are just trying to avoid a situation where something would work here but not over there assuming it would be related to the OS. Were you able to run VS 2010 and SQL Server 2008 as is without any problem from one OS to another?

Sorry, I can't really say as we always use Terminal Server (Citrix) here so we don't have this situation. You might also want to consider using terminal server as well if you want a consisten development machine for everyone.