Hello,
This may be a bit of a long shot, I'll be honest with you up front.... I have no Arduino experience.... so why am I bidding? Well, I have plenty of experience writing code for the Atmel AVR micros both in Assembler and C. I am looking for an excuse to purchase an Arduino and get up to speed with it, to say nothing of the fact that as a keen MTBer I like the idea!
So if you are not in a desperate rush and would be willing to help me down this path I can offer you all the time and support required to get your job done to your satisfaction for hopefully a low price for you. I am British and a native English speaker, so I can assure you that communication, which I believe is most important for a technical project, will be hassle free! And, if you are not happy and I can't sort it out, don't pay. What more can I say!
Best regards,
Paul Burger