Comments Display, with replies

Hi list! I have maybe an easy to solve problem, but I haven't come with a logical way to do it. I am builing a discussion site (a la Kuro5hin.org), and there's a sql query to retrieve comments attached to an article. It grabs their titles, along with some more informatio. What I want is to display the comments and the replies below them. It's been implemented in thousands of other scripts, but I can't figure out how to do with only one sql query (even if it uses Joins). That's important, since I expect the site to be very popular here in Brazil (let's hope!) So, any advices about how to display the comments like this: - Comment 1 - Comment 2 - Comment 3 Is greatly appreciated. I am thinking about storing all comments in an array and construct the layout from there. But still, I don't know if it's the best choice in performance terms. Thanks, -- Julio Nobrega. Tô chegando: http://www.inerciasensorial.com.br