Thanks again for the responses guys. I found today that the sensitivity of the Alpines I was looking at was pretty low (88dB). I think I'll need something more efficient than that. What do you guys think of the offerings from Polk Audio? Such as the DXi6501 or MM6501 speakers? I've read that they are quite good for their price range and extremely efficient.
@Jes42: Sorry about getting your name wrong. Your avatar just pulled me in and I assumed your name on here was SKAR Audio! Why do you hate that brand? Are they like the modern equivalent of Sparkomatic or Kraco?