Centos 5 install specs

I've been managing websites for almost 10 years, usually on a linux system with shell access, so I'm not a complete noob, but I was very limited in what I could do, which bothered me. I found linode.com and jumped at the chance to learn linux from the ground up, not just what was allowed.

I chose Centos 5 (after a few mis-steps) and the install went flawlessly (I presume). But, since it all happened "behind the curtain," I don't know what was installed by default or what options were selected. I'll be setting up a typical LAMP site, and I don't want anything I know I won't use in the foreseeable future. If I have a list of what files were installed, I can research it to see if it's something I want to keep. I've bookmarked and downloaded tons of resources, but they all seem to reference picking an install option/profile, but don't go into what exactly that option entails.

Does anyone know, or can point me to, what happens with a Centos 5 install on linode, what the defaults are, and what software/files that entails?

Hope this makes sense.

Thanks.