On the topic of living costs for Vancouver, coincidentally enough WorkSafeBC (Vancouver's version of OSHA) just released a cost of living calculator for the BC region. You can see that housing will eat up the majority of your paycheque for an average wage (maybe not rockstar IT devs) [1].
http://www.costofliving.welcomebc.ca/
[1] Median family income in BC is $69,150 as of 2011. Source: http://www.statcan.gc.ca/tables-tableaux/sum-som/l01/cst01/f...