re: AU
Just recently returned to CAD-monkey status after five years. This MEP consultancy I'm now temping at uses ACAD LT 2005. I was pleased -- and a little surprised -- at the speed at which I came back up to speed.
They're talking about moving into REVIT, and have at least one development guy checking it out. I haven't seen that yet, but it sounds like fun.
As to "AU": I wouldn't be sent anyway, since I'm 'contract' -- but Las Vegas is the last city in N. America I'd want to visit.