58 of them to be exact, and some of them are very cool: cursive, Paleo-Hebrew, fonts mimicking the writing style of particular Dead Sea Scrolls, etc. They are available here, via the Open Siddur Project. See the bottom of the linked page for installation instructions and examples of the fonts. From the Open Siddur page:
To aid in the dissemination of free/libre Hebrew fonts, the Open Siddur Project now offers, gratis, a FONT PACK. Fifty-eight free/libre and open source licensed, Unicode Hebrew fonts, ready to install. Enjoy them. Share them. Learn from them. Modify them.
6 fonts supporting the full set of diacritical marks (vowels/nikkud and cantillation/ta'amim). 11 fonts supporting niqud (w/out ta'amim) 42 fonts (not intended for use with niqud) 1 font of dingbats 7 Non-Hebrew Open Source Unicode Fonts
They should work on a Mac or PC. If you already have a unicode Hebrew keyboard installed, you don't need to install the one that comes with the font pack. The fonts will work just fine with your current keyboard. I use Logos' keyboards.
SBL Hebrew font is also unicode compliant and available here; the font license is only slightly more restrictive. Tyndale House's Ezra SIL and Cardo fonts are nice as well (Cardo is especially nice for Greek). Tyndale House's fonts are included in the Open Siddur font pack, or you can download them here.
Keep in mind that some of these files download as compressed (zipped) folders. After the zipped folder has downloaded, you have to right click it and click "extract all." When the files are extracted, look for the actual font file (usually a .ttf file). Drag and drop that file into your system's font folder (usually labeled "Fonts"). I added this folder to my "Favorites" in Windows Explorer for easy access.
If you are a part of the SBTS community and want more information about how to type in Greek and Hebrew, contact the Center for Student Success about the upcoming 1-day workshop "Word Processing for Biblical Studies." It is currently scheduled for Friday, September 7, 1:00-3:00pm. It will be two hours long (1 hour, break, one hour), and those who attend will be split into two groups based on what operating system you use. I will be leading the workshop for the handful of you that use Windows computers; Jonathan Kiel will lead the workshop for Mac peeps. More info to come.