SQL Server 2008 February CTP (CTP 6)
In case you haven't seen it, Microsoft has released the latest SQL Server 2008 Community Technology Preview (CTP) to the Download site. You can download it here: http://www.microsoft.com/downloads/details.aspx?familyid=749bd760-f404-4d45-9ac0-d7f1b3ed1053&displaylang=en&tm
The following information comes from the download page (Take special notice of the Visual Studio packs, if you want to use Visual Studio with SQL Server, you'll need to install the appropriate pack)
System Requirements
Supported Operating Systems: Windows Server 2003 Service Pack 2; Windows Server 2008; Windows Vista; Windows XP Service Pack 2
For all download types
Note: