It's all about the Merchant Ale House. Purveyors of decent pub fare, decent micro-brew and a lively crowd, 6 nights a week.

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Merchant Ale House
98 St Paul St, St Catharines, ON L2R3M2, CA

I am having the same predicament, except I am going on thursday. Woooo Brahms.
Any suggestions for good restaurants in the area?

You can also try the little japansese store in Kensington called Little Tokyo, I get it there.

greg is totally on the ball with his suggestions for pubs.
if you are interested in the beer scene in toronto you should hit up the bar towel (linked above) where many of us write reviews and discuss brews.