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Thank you to all who responded!

Here's the summary:

Pacific Rice Milk (the soy milk is alo gluten-free)
Better Than Milk (rice and soy)
DariFree (made from potatoes, but supposed to be very good)
Vitamite (not sure what this is made from)

One person listed Rice Dream, however I was under the impression that this
was NOT gluten-free.  I think I'll try the others!

Thanks again!