I have decided to purchase the new wharfedale 10.1's but i'm am confused about how to get the best sound from my computer. I have no need for a cd player since all my music in mp3 format so would i be best to purchase a normal amplifier and phono jack or are there dedicated pc amplifiers. I am currently a student with a budget of around 400 pounds for the amp and all the connections etc. Any help would be great thanks and I apologise if this question has been asked before.