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All About Ubuntu 
For question 8, here’s my suggestion for an answer.
Q8: I thought Linux was free. Why should I pay for a PC with Ubuntu pre-installed?
A8: Yes, Ubuntu is free of charge, meaning that you don’t have to pay for it. However, the computer itself costs money to make, regardless of whether you run MS Windows, GNU/Linux, or anything else on it. It’s a physical object.
So, are you saving any money? Most definitely! When you do buy that computer with Ubuntu on it instead of, say, Microsoft Windows and MS Office, that computer will cost less–much less. Remember, you don’t have to pay for the operating system, the office suite, or anything else besides the actual physical computer. Ubuntu comes with everything that you need, built-in.
Here’s a real-world example. Let’s say you buy a computer from Dell. That computer might cost $749 with MS Windows pre-installed on it, and then you spend another $200 for Microsoft Office (yes, that’s extra). That’s $949. That same computer with Ubuntu and OpenOffice on it will cost $699…and nothing more. Zip, that’s it. That’s $250 that stays in your pocket.
Convinced now? 🙂
Regarding Q8:
A good option would be to buy the Acer Aspire 3100 Laptop, and replace its default distro, (Linpus – utterly awful – no GUI) with Ubuntu, (which can be ordered free of charge from http://www.ubuntu.com)
[You might need to wait a while for the CDs to come through the mail though.]
That way, you get a portable computer at a very cheap price – and you get a great operating system as well. How do I know this? Because that’s precisely what I did!