If looking for a more thorough walk-through of moving files and databases from server to server, visit Migrating WordPress to a New Server.
In case you’re interested, you can also move between WordPress.com and WordPress.org.
Several years ago, I did a WordPress install at domain.com/blog and had a static homepage (i.e. not served up by WordPress). I’m not going to tell you that you should or shouldn’t do that. I’m going to tell you how to go from one to the other. For me, I moved WordPress from /blog to /.
But I was concerned about the database and my URLs. 2 key points: