We did it!! I was able to convert our AKV dedicated studio to a concierge studio for the week of 3/23/08-3/29/08.
I'm so excited, I was worried there wouldn't be availability during this peak time but everything worked out fine. We probably won't do concierge level again (unless it turns out to be better than I'm expecting) so I wanted us to get it while we can. Looking forward to the Sunrise Safari. I requested savannah view but know it's not guaranteed. We do have a SV 1BR for August 2007 so hopefully I can get my savannah view fix in then in case we don't get it in March '08.
Good luck to all those trying for concierge level!!!