The RC (release candidate) is already out. You can download it for free and use it for free till June 2010.
Here's the link:
http://www.microsoft.com/windows/windows-7/download.aspx
Before there are any questions it's always better and safer to install 32 bit version. Even if you have a 64 bit compatible processor.
Here's the link:
http://www.microsoft.com/windows/windows-7/download.aspx
Before there are any questions it's always better and safer to install 32 bit version. Even if you have a 64 bit compatible processor.