Suse 10.1

Here is the 64 bit OS distribution from Novell. I tried installing in AMD Turion 64 bit processor and the installation is pretty much easy, as you install Windows. And it's loaded with all the applications that u need, Open office, Firefox, Real player, Gimp & Chat messengers. If they market it well, it has a chance of gaining over windows in desktop market like how Firefox is gaining over IE. OpenSuse is free for download from http://opensuse.org.. Give it a try :-)