Your best bet would be to ask the members of Terb, and mention what you're looking for more specifically.
But as Lily said a good portion of the Indycompanion ladies go to Ottawa often, so you can check there too.
Also check Cerb/Lyla, most of the reputable independents advertise on there in the "Ottawa Classifieds" section.
Thank's for the tips. I put it in the 411 section. I actually found one in this site. But I Wonder if they are all good... Do you know anything about Novarella...