Thanks for your responses everyone. Unfortunately, when I tried to come back and read them I found that my library was closed for renovations, so I've been incomputicado since then and wasn't able to see your suggestions before the gig. It went very well though.

Lin, I did sing Over the Rainbow. It occurred to me that maybe it wasn't a coincidence that I was booked to do a program of showtunes during Gay Pride week :).

Marion