I don't have any examples on me right now but the followng URL maybe of some help if not post your question on www.cisco.com/go/netpro where your request might have more visability by more people.
Typically I wouldn't recomended annoucing the user queue place to often just in case the caller is announced they are caller 5 then the next annoucement they are caller 6 but that also depends on your script if people have the chance to get in front of others due to priorities or other methods.
Thank you very much Heathrw!! I'm going to try it out in the next few minutes. I understand your concerns to advertising their position. The only reason I was willing to do something like this is because they only have one queue and it's FIFO.
Looks like I need to remove this one before I can post on the other community page.