Would agree that the Capilano Suspension Bridge is an overhyped tourist attraction. It must be on nearly every Vancouver tourbus itinerary so it can get crowded.

But there is a much better and FREE alternative to the Capilano Bridge. The Lynn Canyon Suspension Bridge in North Vancouver (not very far from Capilano) is the place to go. There is an Ecology Center (oops, I mean "Centre") and hiking trails. Spectacular views from the bridge too. When I visited last April, there were only two other couples there.

See http://www.findfamilyfun.com/lynncanyon.htm
for more information and driving directions.