This supplier has some reasonably priced drip irrigation components made by DIG Corp. The equipment is primarily targeted at relatively small gardens. They also sell kits that have all the components you need for specific applications.
They also have good tutorials and have answered questions for me via email.
You can add Notes to your Garden Logbook with the level of detail you require. These Notes may record specific Actions (ex. fertilize, water, harvest), Observations (ex. flavor and taste, yield) or general information. You can also attach specific plants and photos to these notes.