Reply to DJ Speaker Setup Help!

Hi, I have about 900$ to spend on speakers and i hoped you all could help me figure out how best to spend the money. Should i buy 2 $450 dollar speakers or something less expensive then add a subwoofer? Any and all input would be appreciated. Also i am using these for my room and then for house party's on the weekend. These party's are small room and anywhere from 25-50 people. Thank you