Try the Rose Garden in Queens Park - it is beautiful and doesn't need any dressing up. I'm not sure who you book it thru - might be Centennial Lodge.
Have you thought about having the ceremony and reception back-to-back at the same location? It would eliminate the need for everyone to switch locations, which may be greatly appreciated by out-of-town guests who aren't familiar with the area.
Click on each tool to see a sample.