Both in my home and work, I have powerful 8GB Quad-Core Desktops running Windows Vista x64 and I love the machines. I use extensively Windows Live Writer for writing my blog posts and Live Messenger for IM. Now they come with a single install package (Windows Live Suite) easy to install. When you try to install it on 64-bit Windows the installer fails. I then found this article on how to get the individual MSI files and install the programs from C:\Program Files (x86)\Common Files\WindowsLiveInstaller\MsiSources.