I know that I like GUI also, I don't like command-line interfaces. I've tried WUBI, I didn't like it a lot. I prefer install Ubuntu through the Ubuntu installer, no command-line involved.
As for running Windows applications, you can use the WINE software for Linux. It can run almost any Windows application, except for Microsoft Office and Internet Explorer (but you have OpenOffice and Firefox, so that doesn't matter).
Try it and see, I am constantly learning new things in Ubuntu to improve my skills.
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