Calgary Airport Landing

Hi All,

Looks like my AINP process is almost done, I've sent my and my wife's passports 2 weeks ago, and just waiting to get them back from Buffalo. I believe we can process lading in January 2012. I'm planning to have a vacation in Cuba or some other Caribbean country just before land to Calgary Airport; however, I haven't seen other cases in this forum. Could anyone help me out for landing to Calgary Airport?

Here is my situation:
1.   Work permit holder, have lived, studied and worked in Calgary since 2002.
2.   Immigration process is almost done, sent Passport to Buffalo.
3.   Planning to have a vacation right after Passport and Immigration Visa receiving, and back to Calgary Airport to land. So it will be out with Current Work Permit, in with new Immigration Visa 7~9 days later.

Is this possible? Or anyone has experience landing to Calgary Airport from vacations or travels?

I appreciate to get your opinions or experience sharing.

Andy