The new power supply has come together really nicely, along with the DDS generator board:

There is a spot marked out for the offset pot, I didn't have the right value at the time.

Close up of just supply, one of my cleanest builds, could be condensed, but I was after separation between caps and regulators, this was the size of board I had so might as well make use of the space. Another output will be added for the master control board, I've not decided on AVR or ESP8266 so will either use the current 5V regulator or another 3.3V regulator to provide the additional power rail.