sean9464 said:
I'll be applying while living in Canada under Temp Residency.
If you are living in Canada with your wife, you can apply Inland or Outland. Inland process, Stage 1 will take about 6 months and then Stage 2 about another 6 - 8 months. Outland process for USA, about a month for Stage 1, and then up a year more (but that is for 80% of applications to complete - most Outland Stage 2 are done in about 6-7 months). Processing times are posted here http://www.cic.gc.ca/english/information/times/perm-fc.asp. The top chart is for Outland and then next one down is for Inland.
You should read this first post by Leon http://www.canadavisa.com/canada-immigration-discussion-board/spousal-sponsorship-t46995.0.html. It gives the details to help you decide if Inland or Outland is best for your particular situation. And a lot of other really great info.
Also, then read through the Guides http://www.cic.gc.ca/english/information/applications/index.asp and then post here for other questions. There are a great bunch of very well informed people that can assist. Good luck with your application!