How do I get the SCCM server to direct the clients so they get DHCP, and connect to the SCCM server?
Do I need to have the WDS role installed? Is this a requirement?
In short yes, "The Transport Server WDS role service is required for PXE support"
Also I think it's pretty important that you install WDS then do nothing else related to WDS. SCCM configures it for you.