“ As of Windows SharePoint Services 3.0 with Service Pack 1 (SP1), you can install Windows SharePoint Services 3.0 and Office SharePoint Server 2007 on Windows Server 2008. You cannot install Windows SharePoint Services 3.0 or Office SharePoint Server 2007 without service packs on Windows Server 2008. “ Check out the TechNet resource center at Windows Server 2008 Resource Center for SharePoint Products and Technologies
Why should you consider this?
Read how new features in Windows Server 2008 address important issues that face organizations that deploy Web solutions with SharePoint Products and Technologies in Advantages of deploying SharePoint Products and Technologies with Windows Server 2008.
Definitely read, review, understand the topics discussed at http://technet.microsoft.com/en-us/library/cc287748.aspx if you are new to Windows Server 2008 configuration.