If you don't intend to do any gaming, really any version of Linux that comes with an installer is ideal.
Ubuntu is the absolutely easiest to work with, but it's a little harder to do fun things with.
I, personally, recommend openSUSE or Fedora. Fedora will look essentially identical to Ubuntu - it has the exact same graphical user interface and doesn't alter it at all - but it offers some more (easily accessed) functionality, at the cost of needing a hair more technical know-how.
openSUSE is professionally supported by an actual major networking/IT company, Novell. It, from my personal experience, offers the best general Linux experience to any user, but it IS a little harder to find your workarounds.
Just don't try doing much gaming. You'll work up a headache quickly.
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