Which Fedora 11 64bit to download, what's KDE?

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http://forums.fedoraforum.org – Hey all, I want to install Fedora 11 64bit on my new laptop, getting rid of windows 7,I'm on the official download page and I'm not sure which to get. Fedora-11-x86_64-Live or Fedora-11-x86_64-Live-KDE whats the difference? (HowTos)