So far I have worked on the controller/receiver board and am almost done with the PCB design. I have altium at my job and they let me use it when I want so I decided to do this project in altium in order to get a better handle on it.
This design uses a transformerless power supply. I decided to use a TI MSP430 microcontroller and a Microchip MRF49XA transceiver chip that I plan to run at 433 MHz. All it needs now is some mounting holes and a proper antenna (probably going to do some kind of onboard trace antenna).
I will post the transmitter PCB soon and the schematics for both.