You could certainly use that device, but it looks as if it is designed to work with Parallax products like the Basic Stamp board. The serial interface is quite unusual in that it only uses one line for both sending and receiving. I looked at the data sheet and there isn't much technical info on the serial protocol, I think they assume you are going to be plugging it into one of their boards so you won't be too concerned about how it works. You could drive it with a pin on a different microcontroller but it would take a lot of work I think.
A better device would have a SPI interface. This has serial input and output, and devices can be daisy-chained, which means you can use a dedicated serial transmit pin and a dedicated serial receive pin, which makes a lot more sense than trying to use one line as both input and output! Many micros have SPI functionality built-in.
This one may be suitable:
That's if you can still get them. They are not listed on the manufacturer's own website.