I know rjk is looking for a a program that will take the recommended fan speeds from cgminer and send them over serial to the arduino fan controller I'm making him.
Yeah I've been forgetting to ask around. I figured I'd try it out and see how it worked now first.
It sounds like a fun project. I'm not very experienced with arduino apart from reading about it, though. If you decide to hire a programmer, just drop a message and we can discuss it more in depth.