How can I run my website through Lion Server?

I am very new to the web design world and have a few technical problems I've run into. I apologize for my idiocy.

I have recently purchased a web domain from GoDaddy.com and the OS x Lion Server, and I have built an HTML site with Adobe Dreamver CS5.5. I am trying to figure out how to connect these in order to publish my website. My question lies with the hosting process and what I should use in order to do so. Should I purchase a Host through GoDaddy? And would a DNS have to be purchased as well?

Thanks!!