http://www.jantzentailor.com/
I found this gem when I was in Hong Kong during the spring. I would recommend this place if:
- You can find someone who can take your measurements
- You're comfortable with selecting fabrics
- and, if you're comfortable with a wait (6-8 weeks)
Their shirts are about 320 HKD which is about $50-55 CAD. They do stock casual fabrics as well as typical dress shirt fare. The quality is not Saville Row by any means, but it's better than Zara, Mexx, etc. Plus, they actually match stripes up from the shoulder to the sleeve which you will not get in a shirt from a regular store.