I agree with previous posters. Whats the point of telling them WHAT you are gonna do X number of years after? BUt even if you do tell, who is going to stop you from entering? :) Moreover, Canadians dont think Americans are hip so if you try to be cool, it aint gonna work :) Also, make sure you have visa and all the neccessary documents to go back to U.S. After 9/11 things are the same, Americans being nose, will harass you and VISA wait is millions years..if you are planning to do that here.. since you will be returning right away, make sure you tell immigration officers that you still have stuffs that you are going to bring it with you next time..Such as computers, equipments..etc.. Just cuz you wont be taxed..when u come..SO make sure u declare that u are bringing some next time when u come..