+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
I know you've already been told this, but I'll say it again. You definitely want to get married before sending in your application. You can sponsor a wife or husband. You can't sponsor a fiancée.

Read this thread about having your wife visit while waiting for the processing of her application:
http://www.canadavisa.com/canada-immigration-discussion-board/-t22091.0.html There's a lot of good information there.

I need to add my experience to that thread, but I haven't had time yet. My quick advise is to make sure you have at least paid the fees before crossing the border to prove that you are applying.

lonelycanadianwifey, I guess you're right about the HIV, but I wonder about that lately since people have been charged with manslaughter or something similar for spreading it. Anyway, I'm assuming there's little chance of HIV being involved here.