I just did a little project where I used the Sparkfun RS232 to TTL converter. [sorry I am not allowed to post links... go to Sparkfun.com and search for "RS232 Shifter SMD"]
This only converts the Rx and Tx but it worked fine for me on my Sony Receiver and another RS232 device I have.
I am a firm believer in the KISS (Keep It Simple Stupid) principle and unless you need all the handshake signals this is the way to go..
