Covered a birthday party recently as well, for Megan. She turns 3 this year.
The party was held at GoGo Bambini (www.gogobambini.com), an indoor gym set in idyllic Dempsey Hill. It's not cheap, and personally I think the play gym is very dark. I thought a design that allows more daylight in, and to bring in the natural greenery of the place will give it more character.

Anyway, that's just my opinion. Nevertheless, the party was successful and everyone, esp the birthday girl, went home happy. Nice cake, by the way.