Turns out landscape lighting isn't too hard to install. I needed to buy a transformer, a timer, some lighting cables, waterproof lighting wire connectors, and then the lights [FX Luminaire SP] themselves.
A little bit of research and talking up the helpful sales manager at The Urban Farmer Store put me in the right direction.
I'm probably going to install some uplights too at some point to highlight a couple of trees. It's not a bad do it yourself project and I probably saved a thousand dollars or so doing it on my own.