I just spoke with Dianne @ ShopBot, and she informed me that our unit would probably ship from their shop 8/28 or 8/29. Should get here the first week of September.
The other good news - ShopBot Jamboree will be held in Austin on the two days prior to Maker Faire '08. We had already planned on attending the Faire, hoping to make arrangements with the ShopBot people to work with them and absorb some more useful experience. The Jamboree will feature 'Bot users from the region willing to share their tip and tricks.
We should have our machine installed by that time, and have received our on-site training. The Jamboree is hitting at a great time to reinforce that knowlege.