While this premium linux distribution also comes with great documentation, it is really the six CDs packed with goodies you are paying for.
This set gives you everything you need to take a computer with an empty hard drive (or one that already has an operating system like Windows on it - it can peacefully co-exist) and install Mandrake Linux 10.0 quickly and easily. Mandrake 10 is not only the easiest and cheapest linux distribution out there, it is also one of the fastest (running the new 2.6 series kernel) and definately the one with the best community of users willing to help you get started, learn more, or become a guru! Visit mandrakeusers.org to see what I mean - if you have never tried linux out, these great folks will answer any question you may have.
I personally find linux easier than anything else, and this Mandrake easier than any other linux. It comes with tons of games, software, office suites, etc, so you really only need to make one purchase. You don't need to buy an anti-virus and firewall program, office program, CD burning software, etc separately because it's all included!
One more thing before I start my own install (seriously): You will never have to worry about e-mail worms or suspicious attachments ever again. Those do not affect linux, and after what you pay for a computer, you shouldn't have to worry about such stupidities.