Am publishing Gerber and Schematics for a simple board,
that features a PIC24FJ64GB002 (or202) , an MRF module such as MRF24J40MA/MB and a 433MHz transceiver.
Plus 3 leds, 2 switches (that can be used to make up a I2C or SPI port), a relay and a buzzer, and a mini-USB connector.
Have fun