In the 1980's and early 1990's I built and distributed a set of bitmapped phonetics fonts for the Laserjet, VGA, and Hercules+ with WordPerfect drivers. I don't think anyone uses these anymore, but, if for some reason you find you need them, email me and I can send you a copy.
A later set of TrueType fonts had the same unique (peculiar?) character encoding as the bitmaps. If you would like a copy of these, let me know and I'll email them to you.
You may want to download software for converting the old encoding to Unicode.
Today (2004) you probably want to use Unicode fonts. There are several good ones available that have the phonetics characters: Lucida Sans Unicode and Arial Unicode MS, fonts that come with Microsoft Office, have a good selection of characters. Times New Roman and Courier New also have many phonetics characters. AbRoman Serif, Aboriginal Sans, Gentium , Doulos SIL, Charis SIL, and Titus Cyberbit are good fonts for phonetics and lots of other scripts. You can also buy the SIL Encore Font package, which builds a set of Unicode fonts with lots of phonetic characters that you can adjust in four typefaces.See Alan Wood's excellent site for information on Unicode.