Changing style of latex description lists

If you \usepackage{enumitem} you may get what you like:

\begin{description}[style=multiline,leftmargin=3cm,font=\normalfont]
\item[Name:]  Halpo
\item[Email Address:] halpo@users.mysite.com
\item[Address:]  1234 Ivy Ln \\ Springfield, USA
\end{description}

Results in:

Check here for full package documentation.