Just a minor point, but fonts aren't specific to MS Word - when you download fonts, put them in the c:\windows\fonts folder and they are available to all Windows applications...
If you type 'free fonts' into Google you'll find plenty of site where you can dowload fonts from. My personal favourite, though, is Fonts for Kids. Don't be put off by the title. There are some wonderful fonts availabe (all free) and the site is far more user friendly than some of the 'heavyweight' ones: http://www.momscorner4kids.com/fonts/