WhisprSYD and others
For those of you who think there is only one separation standard you're in for a shock! Lateral, Vertical, Distance, Time, Wake, Radar, Runway and Visual separation are all used by tower controllers. You then have to be able to change rapidly between these as circumstances dictate. Whereas Enroute and TCU work in miles of distance and thousands of feet separation, tower distances vary down to 600 metres or in the case of a tight arrival and a departure the difference between a separation standard and a breakdown can be down to a few seconds. Don't approach a tower course thinking it's easy, it's not!
As for the comment on the lack of HMI, there's still plenty in a tower and a lot more coming with the new tower technology being rolled out.
P.S Broome is a two man/woman tower.