Extroverted Intuitive Thinking Perceiving
Nathan told me about the site personalitypage.com
I'm still an ENTP. I took this same personality test as a requirement by my boss in Houston 4 or so years ago. Unfortunately, she seemed a bit disappointed with the results...She's an ISFJ (Introverted Sensing Feeling Judging) and according to the test, they aren't the best bosses. ENTPs are, however ;)
I always thought the test was wrong when I took it in Houston, but I took it again tonight, and it's the same. I still think it's inaccurate. Your best friend should help you take it.
Here's the free online test:
http://similarminds.com/jung.html