Music speakers are typically built to cover a broader rang of acoustic replication. They also only require a 2 channel amp. So if you want a system to play both music and movies then you will need to buy the appropriate receiver.
Received my Verus Grands yesterday afternoon, and spent the better part of the evening setting them up and calibrating the system. I haven't gotten a lot of listening time yet, but I'm loving what I'm hearing so far. My previous setup was a 9 year old Onkyo HTIB which, at least as far as HTIBs go, was pretty good.