Mario,
For GoogleAdwords - I myself don't do it, my sales guy does, but I know that it is important what tag words you use - for us we use words like buy houses, fast, quick, cash, etc. A search engine optimizer (SEO) is a person whose job it is to get you on top of Google either using GoogleAdwords or thru organic rankings. Ask around for a referral to someone who does SEO. Try using kijiji as well and advertise under "real estate services" section. Because you are in a large city, you may have to repost or bump your ad every day - try after 4pm or 6pm when people are home and surfing the net.
I would suggest choosing a neighbourhood in Surrey that is affordable but not a war zone that is desirable - schools, shopping etc, just like on the goldmine scorecard. Ask a realtor to help you determine what areas people want.
Hope that helps!