Check out a few free fonts, as well as fonts you can buy.
It has Mac Truetype and Postscript, Windows Truetype, and Opentype.
For Windows, download the Windows font zip file, unzip it, and copy the contents (except the readme file) to your Windows\Fonts directory. For other OSes, it varies but a google will tell you pretty quickly.
Then they'll be available in OpenOffice.org. (FYI, in this shot I'm using OOo on Windows but with Ubuntu icons.)
Also, ironically almost exactly a year ago, I posted this blog on the font import wizard.