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I haven't used the skype client for Linux either. If you have a Windows 7 installation disk it might be a better route but I don't think you can buy them anymore unless you're an enterprise customer...

While Ubuntu isn't windows, it is pretty good about "just working"
It's quite different from Windows, but if you're patient you'll be able to use it no problem. I've got a good bit of experience running Ubuntu (at work and at home) so I'll be happy to lend a hand if issues pop up.