For that LCD driver you may want to read this:http://www.wulfden.org/TheShoppe/k107/about.shtml
seems he has a library and example code for use on an arduino.
Why would you want that one though because the serial 20x4 lcd from sparkfun is about $10 cheaper, true it is not blue but buying their serial module and a 20x4 lcd would still be cheaper.
Hm, I'm just curious. The Graphical serial displays, how much more complex is it to get them working?
Quite a bit, relatively easy to show standard text, and simple shapes are not too difficult. It just takes a lot more code to do the complicated things.