Well, thanks for all your entries, folks, but the competition closed last night.
All the names were put into a hat and, in the spirit of impartiality, a name was drawn by my 2 year old daughter (who doesn't follow any of you on Twitter, and in fact doesn't know what Twitter, or a Snark tuner is...)
CONGRATULATIONS TO - John Wigley (Twitter @johnwigleythera ) who was the winner. Will be getting in touch with you soon via Twitter to get your details. Well done and enjoy your tuner!
Keep an eye on GAU for more competitions soon!