PaulS,
I was trying to use the VirtualWired library to test this using only one Arduino (which is what I have right now, but don't worry I backed Tinyduino and smARtDUINO so I will have more to work with soon!). It appears that its not really clear how to test an RF unit with only one Arduino, I tried and tried to get it to work with various VirtualWired library. I have not looked into SoftwareSerial but I'm doing that now to see how it works, if it uses the TX/RX pins on the Uno then I wont be able to test it with just one Arduino however it appears...