\textbf, \textsf, \textsl, \textsc,
and \texttt, we have many new fonts on th EE Sun cluster. If
you think all the regular fonts supported by LATEX are not enough
for your thesis, you can contact to LATEX analyst
(tex@ee.tamu.edu) and he will show you the font map. Many
special math symbols can be accessed using the AMS-TEX package. See
Chapter 8 of The LATEX Companion [#!goos!#].