This guy knows what he is talking about.Blumats is what I would recommend.
For a drip system you can start with a reservoir, some tubing for the main line and smaller for the feeder lines, emitters, and a no pressure irrigation timer. You can get more complicated but there isn't really any need to. There are also pressure reducing valves that will allow you to connect to a water source like a faucet. If you use a reservoir you'll still want to use a small pump to keep it circulated.