I gotta agree with the CA-20.

I have two of the Korg models that are higher up in the food chain, and find the CA to be only slightly less acurate (actually, just in it's ability to "extremely fine tune" since it doesn't have a true needle) BUT somewhat easier to use than the others. Murray, I think your advice is great but I would strongly recommend this particular tuner for the price. I paid $18 US on sale for mine- we liked it so much we bought a second for my wife's harp.

I absolutely don't think you can beat this model for the price. (And honestly, I'm something of a tuner freak! I'm embarrased to admit how many we have... )

jim