Reply to Which Speakers to Buy

I finally convinced the wife to let me blow a few hundred bucks on some speakers and I am unsure as what to get. I have been looking at the KRK Rokit which are more for home use but I do want to start djing small private parties so should I look at getting some kind of PA setup? Anyone have any suggestions for around 500$. Here is what I'm leaning towards now is 2 KRK Rokit 6 and then later on picking up the Sub made by KRK. Thanks alot mates for the info