This is no good for me as we have already booked but a friend just emailed me as Teambuy has a deal on that for $25 you get a $100 Air Canada Vacations travel voucher. It is only good 1 per booking but still haves you $75.... it has to be booked through a certain travel agency so if you are still looking may be worth checking out.
Here are the links:
Travel Agent Site
Hopefully it can help someone out!!!!