How to use multiple operating systems on the same machine
http://www.vmware.com/products/player/
Download
https://www.vmware.com/tryvmware/?p=player&lp=1
Linux (Beginners)
Ubuntu
http://www.ubuntu.com/
Linux (Intermediate)
SUSE Linux
http://www.novell.com/linux/
Linux (Business and Corporate)
Red Hat Enterprise Linux
http://www.redhat.com/rhel/
Linux (free)
http://fedoraproject.org/
Debian
http://www.debian.org/
Coming up
HP web OS
http://www.palm.com/us/products/software/webos2/
Google Chromium
http://www.chromium.org/chromium-os
Flow( Unofficial Chromium Build)
http://chromeos.hexxeh.net/
Mac OS (loved by many)
http://www.apple.com/macosx/
Microsoft Windows (used by many)
http://www.microsoft.com/windows/windows-7/
Mobile OS
Android
http://www.android.com/
iOS
http://www.apple.com/iphone/ios4/
http://www.apple.com/ipad/ios4/
Nokia Symbian (soon to be depreceated)
http://www.symbianos.org/intro
Windows Phone 7
Meeg0 (Intel + Nokia)
http://meego.com/
R for Business Analytics 