Note: I think the address for this store has changed. They are off of College Ave now, but still near it and the intersection with Atherton.
That Oriental Store usually has good kimchee. There was only one time when I bought some and didn't like it. Kimchee prices are a little high, but with little competition that is expected. They also stock lots of other korean pickled vegetables, as well as snacks, sauces, etc. On Thursdays, the owner hosts a customer appreciation day; she prepares free food that you can munch on while you shop.