Sorry, the mismatching baud rates was just a typo. I am going to use the RX433 and TX433 duo from Qkits.

http://store.qkits.com/moreinfo.cfm/RX433
http://store.qkits.com/moreinfo.cfm/tx433

I have 4Mhz oscillators. Can I go at a faster baud rate?
Thanks.

-Mike