Adding a new domain

HELP! I want to add a new domain and setup another Wordpress Blog. How do I do this??? Thank you!
My domain is hosted on Godaddy

Go to GoDaddy and edit the WHOIS information (or whatever GoDaddy calls it) where you set the DNS servers so it uses the DreamHost DNS servers.

Now go to the DreamHost panel and 1) Manage Domains -> Add a New Domain (Fully Hosted) for your new one, then 2) One-Click installs and add WordPress to your new Fully Hosted domain.