What do I need for new home electrical service?
After reading your comments, it seems you should be alright with what you want to do.  

The basic idea is that there has to be a circuit breaker style disconnect outside and away from the house, that can be operated by anybody (non electrician).  If you only have a meter socket a general worker would not have the tools, or knowledge to pull the meter if there was any need (emergency or otherwise) to shut off the power.  You also may not be able to use the load center as a disconnect (depending on your location), because at some point the load center will have to be moved into/onto the house. The general setup will look something like this.



The disconnect will have to be a weather proof, circuit breaker style disconnect.