Nope, didn't have to change the alignment for my wheels. Generally, as your wheel diameter goes up, your sidewall goes down, so the total diamater of your wheel and tire stay about the same. However, some people run different sidewalls than average and it can change a little bit, but generally you can pop aftermarket wheels on and continue with even wear throughout the tire, as I had on my stockers.
The best thing in any case is to just get the car aligned with the wheels on that you want. I handed him lance's numbers and he aligned my car to spec. Make sure you go to a reputable alignment shop, that specializes in aligning. We've all heard many stories of alignment shops that do half-assed jobs and don't even align your car to the specs that you request.