Any ideas for finding this in Illinois?
i'm not sure about illinois but i got mine here: http://www.bamboogarden.com/Phyllostachys%20aureosulcata.html
i've placed 4 orders with them so far and have been very impressed with the quality and shipping process.
I ordered mine from eBay. Philinshelton was the member name. But there are reports of several good dealers. If I remember there is a thread here on that subject with people listing experiences. Should be searchable.
Did you ever find a good IL source? If so, I'm interested in hearing it.