CSS Positioning help

I'm starting to create a new site, and I'm having some issues deciding how to create it.

I want a header, footer, and 3 columns.

This is the CSS I have created, but have some issues with it.

Should I use absolute positioning for all elements? The bottom bar isn't lining up at all. Also, for the middle content, how do I get my info into there easily? I will be using the main page as a php page that I will include on all my pages. Should I not use a middle content section?


#content
{
margin-left: 199px;
margin-right: 199px;
border-top: 1px solid Black;
border-bottom: 1px solid black;
height:450px;
position:absolute;
top:59px;
width:585px;
}

#titleBar
{
background-color: #333399;
text-align: center;
font: bold large Courier New;
height: 40px;
padding: 8px;
border-top: 1px solid Black;
border-left: 1px solid Black;
border-right: 1px solid Black;
color:#FF9933;
}

#bottomBar
{
background-color: #333399;
text-align: center;
font: normal x-small Courier New;
height: 20px;
padding: 4px;
border-bottom: 1px solid Black;
border-left: 1px solid Black;
border-right: 1px solid Black;
color: #FF9933;
}

#navleft
{
background-color: #FF9933;
border: medium double;
text-align: center;
height: 450px;
position: absolute;
left:10px;
top:59px;
width:200px;
border:1px solid #000;
}

#navright
{
background-color: #FF9933;
border: medium double;
text-align: center;
width:200px;
height:450px;
position: absolute;
right:10px;
top:59px;
width:200px;
border:1px solid #000;
}

Hopefully this can help you:
Use links with id's like
"mypage.php?id="12".
Then in the middle section use PHP's switch condition:


cheers

Thanks for the info, I'll try it.

Someone else mentioned that I should make the <div> section a variable and then redefine it in my other php pages.