Adding more than one author with different affiliation

A short example with the authblk package. It is not exactly what you are looking for, but comes quite close.

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{authblk}

\title{More than one Author with different Affiliations}
\author[1]{Author A\thanks{[email protected]}}
\author[1]{Author B\thanks{[email protected]}}
\author[1]{Author C\thanks{[email protected]}}
\author[2]{Author D\thanks{[email protected]}}
\author[2]{Author E\thanks{[email protected]}}
\affil[1]{Department of Computer Science, \LaTeX\ University}
\affil[2]{Department of Mechanical Engineering, \LaTeX\ University}

\renewcommand\Authands{ and }

\begin{document}
  \maketitle
\end{document}

---

 *File List*
 article.cls    2007/10/19 v1.4h Standard LaTeX document class
  size11.clo    2007/10/19 v1.4h Standard LaTeX file (size option)
 fontenc.sty
   t1enc.def    2005/09/27 v1.99g Standard LaTeX file
inputenc.sty    2008/03/30 v1.1d Input encoding file
    utf8.def    2008/04/05 v1.1m UTF-8 support for inputenc
   t1enc.dfu    2008/04/05 v1.1m UTF-8 support for inputenc
  ot1enc.dfu    2008/04/05 v1.1m UTF-8 support for inputenc
  omsenc.dfu    2008/04/05 v1.1m UTF-8 support for inputenc
 authblk.sty    2009/11/18 1.3 (PWD)
 ***********

---

@Canageek: Is this what you want?

If so, then credit should go to Thorsten Donig as I read a "document" on authblk package and made few changes to Donig's answer.

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{authblk}

\title{More than one Author with different Affiliations}
\author[*]{Author A}
\author[*]{Author B}
\author[*]{Author C}
\author[**]{Author D}
\author[**]{Author E}
\affil[*]{Department of Computer Science, \LaTeX\ University}
\affil[**]{Department of Mechanical Engineering, \LaTeX\ University}

\renewcommand\Authands{ and }

\begin{document}
  \maketitle
\end{document}

Edit: If you want to use a dagger instead of ** , then replace (every) ** with $\dag$.

The titling package has capacities to typeset authors like this. See the documentation for the details.