I just ordered these from eBay. I have no idea which amp to buy, that would work with them. They have pretty low sensitivity(89db) and are 50W at 8ohm. My budget is about 300-400$.

I am going to use my computer as the input source, in my pretty small (12sqm even less) room, do I need anything else except the speakers and amp/reciever for good quality sound (good quality for the price that is)?

thanks!