Well, I think you're in the right spot. Just browse the top 5 or 6 threads here and you should get a good idea of the club scene.
I'd say that if you plan to stay on the Ottawa side, Barefax and the Playmate are your best bets. You could make it to one or the other pretty quickly if you wanted a bit of variety or it wasn't what you were looking for.
The same is true across the river in Gatineau with Pigale's and Club77.
Honestly, they're all within a 30 minute drive of each other (furthest trip would be Playmate to Club77, I think). Just remember to bring a lot of cash, tip the waitresses, be respecful, and remember that you can always say no. A lot of guys will go with any girl who asks. Save your money for the girl you find most appeals to you and you can get less picky if that doesn't happen. These are the rules for a good time.