LaTeX font wisdom

1. Do NOT use the default Computer Modern fonts, DO use Times Roman or Lucida Bright.

   To Use Times Roman with MathTime:

   \usepackage[LY1]{fontenc}
   \usepackage[LY1,mtbold]{mathtime} 
   

   or

   \usepackage{pslatex}
   

   To Use LucidaBright for text/math:

   \usepackage{lucidabr} 
   

   To use Helvetica (good for slides)

   \usepackage{helvet}
   

   Another combination recommended is Adobe Garamond for text and eulervm for math:

   \usepackage{AGaramondPro}
      \renewcommand{\bfdefault}{sb}
   \usepackage[small, euler-digits, euler-hat-accent]{eulervm}
      \newcommand{\bm}[1]{\mathbold{#1}}
      \renewcommand{\mathbf}[1]{\mathbold{#1}}
       % eulervm must be loaded AFTER default text fonts are redefined.
       % while using eulervm, use 'mathbold' instead of 'mathbf'.
   

2. Do NOT use the default bitmapped fonts, DO use Type1 fonts, which makes the document smaller and look better. To do this, use the -P pdf option with DVIPS.
3. Do NOT mix other text fonts with Computer Modern math fonts, DO use math fonts specifically prepared for use with particular text font. If no proper math font is available, stick to CM because it goes well with its math font, which is the TeX default.
4. A nice TeX Font Guide.
5. The default LaTeX documentation has a font sampler file called sampler.tex and sampler.pdf that showcase free, ready-to-use fonts coming with LaTeX.
6. Another link that might be useful: http://www.iro.umontreal.ca/~csuros/latex.html