go to www.hellobc.com ( they have some great package deals ) or www.bcpassport and you will see some great info on hotels, prices and where they are located. good luck and have a great time. also priceline and hotwire are very popular for getting hotels at cheap prices. from what i have read any 4 star in the downtown or west area of vancouver is good.
another wonderful option is Barclay House in Vancouver, very highly recommended Bed and Breakfast. Depending on season, can be as low as 79. 00 night plus tax US money. Several in our group have stayed there and staying again. I believe the website is www.barclayhouse.com, besure to look at their photo gallery.