Is there a suggestive search mod available for Zen Cart?

By suggestive search, I mean a normal search box that shows product title suggestions as you type, the kind of thing you may see on Google when you begin to type a search query.
Another example is shown on this online store, see the search box (not powered by Zen Cart, just some store I've used before):
http://www.absolutemusic.co.uk/store/

I've not seen a mod that would do this for Zen Cart. Just how feasible would it be to write something like this? I'm not a coder but we have a couple of coders working with us that could probably do this, just wondered if anyone had come across anything already out there?