I was in BC this weekend and went in CMS for the first time. I was pretty disappointed. No good deals at all, except for a few pieces of women's clothing. I was really disappointed to see that arc'teryx adjusts their pricing for the home (canadian) market on their clothing, unlike on their packs. The packs are a great deal up there, cause I can get one for $200CDN, which would cost $200US. Basically a instant 35% off. Their clothing, however, has been ass-rape adjusted, so a nice shell is like $600CDN or some such crap.
On the other hand, the lightweight powershield jacket I got at MEC for $155CDN is a great deal. An equivilent arc'teryx piece would be $250US or so.