\documentclass[11pt,a4paper,oneside]{report}
\usepackage{pslatex,palatino,avant,graphicx,color}
\usepackage[margin=2cm]{geometry}
\makeatletter
\renewcommand{\maketitle}{%
   \begin{flushleft}%
      \sffamily
      {\Large\bfseries\color{red}\@title\par}%
      \medskip
      {\large\color{blue}\@author\par}%
      \medskip
      {\itshape\color{green}\@date\par}%
      \bigskip\hrule\vspace*{2pc}%
   \end{flushleft}%
\thispagestyle{empty}}
\makeatother
\begin{document}

\title{Practical Typesetting}
\author{Peter Flynn\\Silmaril Consultants}
\date{December 2001}
\maketitle

\end{document}
