... and one of these phones:
Then you should check out the Fido Uno plan which gives you unlimited VOIP over Fido's networks for $10/month.
The way I see it it will work from any WiFi point - not just at home. So you could use it at home, at work, at starbucks - anywhere with WiFi.
And the best part is you only use one number and one bill. No need for a separate Skype number! Now if only they would release an iPhone app for this I would be all over it!