As I noted in my last blog post, there are new versions of the Windows Live clients available for download. Related, if you haven’t already seen it, check out http://www.windowslive.com/Experience to learn more about the products.
My favorite is Messenger for video-to-video chats, but Mail, Photo Gallery and Writer are great too. I use Mail every day, but only Photo Gallery and Writer when I need them, which is probably a few times per week.
You can get the latest versions at http://download.live.com