What to do? What to do?

I need to acquire speakers for my system (Acurus ACD-11, Aragon D2a2,Aragon 18k, kimber 4pr and pbj). I currently own a pair of BW 620 (free for helping my neighbor move). They've never wowed me with my rock music (which is about 50% of my collection) but I enjoyed listening to chamber and jazz on them. I'm a grad student and this will be my first real speaker purchase, so budget is an issue. What direction should I take in my search for some accurate speakers.