I had the opportunity to try some shots around the Opera House in HDR last week with my daughter as my lovely assistant.
These were all taken with the 20D at various F.L, with each HDR image consisting of around 10 images of various exposures combined in PS CS3 HDR.
No sharpening has been applied to these at all.
Larger files (approx 500k) can be viewed here:
Opera House HDR1
Opera House HDR2
Opera House HDR3
Opera House HDR4
Hope you enjoy.