I have a US-purchased Dell laptop and I use a wall socket converter and just plug the cord into that. I haven't had any issues with it at all. I bought the converter at BestBuy and it was about $30, however it has two other converters included for both the Continent and the US, so it was well worth it.
If your power cord has a ground plug on it, that might pose a problem unless you get a converter with a third hole for the ground. Otherwise it should work just as well :-D