We have just went through the development phase doing exactly what you are asking. Make sure you read through the Admin.chm thoroughly before attempting to move it live onto your domain. My suggestion is this: Create the Sharepoint server on the single PC using S2k3, IIS6.0, and Sharepoint's latest version. Install Sharepoint via the Server Farm method connecting to your Sql Server. When you go to your New Sharepoint server on the domain install Sharepoint via Server Farm and connect it to the Sharepoint PC. Also connect it tho the Sql databases. Yu are good to go from there.
Any Q's, just email me.