<p>I'm fairly new to the world of versioning but would like to introduce Subversion into our small development team as we're finding that more and more we are working on the same projects/files. We primarily code in <code>PHP</code> on a <code>LAMP</code> environment (Red Hat Enterprise).</p>

<p>What I'm looking for are some starting points to get me up and running such as installation/configuration guides for Red Hat. I use Dreamweaver <code>CS3</code> (I see that Subversion functions will be introduced in <code>CS4</code>) so would be willing to look at other PHP IDEs with Subversion integration, do you have any preferences? I'm open to suggestions.</p>

It depends on what version of RHEL you are running.  Setting up Subversion in general is very easy you just have to install the binaries and run svnserve or adapt the Apache configuration.
Get it:
http://subversion.tigris.org/getting.html
Install it
```
svnadmin create --fs-type=fsfs
```
After that you have a repository which you can serve via apache or svnserve.  I can recommend Apache because it scales better, is easier to maintain and allows you to access the repository via DAV.
Example configurations are here:
http://svnbook.red-bean.com/en/1.0/ch06s04.html