revtex
This seems like a really stupid question, but I am confused. I am LaTeX-ing papers for a professor, but APS requires the REVTeX format. Is it as simple as \documentclass{revtex4-1}, and remains as a .tex file?
Are there formatting requirements (for APS/AIP) I should look out for as well? I don't like how the sections are numbered with Roman numerals, but is that one of those things that are required?
Works for me. I am using
Document Class: revtex4-1 2010/07/25/20:33:00 4.1r
which fixes a number of bugs in the affiliation code.
Testcase:
\documentclass[superscriptaddress]{revtex4-1}
\begin{document}
\author{J. T. Ripper}
\affiliation{Bethlem Royal Psychiatric Hospital}
\author{Bugs Bunny}
\affiliation{Looney Tunes}
\author{Daffy Duck}
\affiliation{Looney Tunes}
\affiliation{Warner Brothers}
\maketitle
\end{document}
Result: 
\documentclass{revtex4-1}
\usepackage{amsmath}
\numberwithin{equation}{section}
\renewcommand\theequation{\arabic{section}.\arabic{equation}}
\begin{document}
\section{aaa}
\begin{equation}1=2\end{equation}
\section{aaa}
\begin{equation}1=2\end{equation}
\end{document}
Best Answer
I highly reccomend you read the REVTeX documentation located on the REVTeX Home Page. The authors guide can be found there, as well as other documents pertaining to your questions.
In short, yes. after RevTex is installed, it really is that simple. As for formatting requirements, that is going to be dependent on who you're submitting this to, and what they are looking for. If you're unsure, I would advise you to use whatever the big journals like "Nature" are using if you don't have a target audience in mind.
Since you're in university, I suggest you check with your university's guidelines and consult your professor, maybe your university has a specific LaTeX template they would like you to use.