My current mortgage payments are based upon a higher rate (I think 9% or so) so I'm paying more principle down with every payment. I should be mortgage free in about 7 years. Although I should probably dump any extra $$$ on it, rather then investing..
You probably should, it's guaranteed and will return a hell of a lot more than any investment. Your contribution room will carry forward, once you are mortgage free, if it's beneficial you can start dumping into RRSP etc and defer that income.