I've already put together a website for a client and I was wondering what would be the best way to embed a blog for him so he can update news when he feels like it. I really don't want to have redo the entire site and I want the blogging to fit into the layout as well as not be a complete headache trying to set up. Any suggestions would be appreciated.

Create a subfolder in the site such as "news", set up the template there for him, and run it as a standalone module.

That way, you don't touch the site and he can still update whatever he wants.

I've been enjoying Word Press and they have tons of templates you can use. Then you could just set it up in directory, as Adam mentioned and your client is off and running!

Yes. Wordpress would be the way to go. You can design a wordpress template to match the site.