I like my Kicker SoloBaric L5's....but I wouldn't buy them if it were up to me. I would get L7's, but even those are overpriced for what they give you.

Get two 15" Eclipse subs. They outperformed me (badly) on Saturday's Accord meet. Plus they sounded REALLY loud.

I'd go with JL if you're practical though. They seem to be the best all around deal for quality, power, and brand. Audiobahn if you're economical and you just want power handling (not quality).

As for Rockford Fosgate amps, mine is the older model and so far, I like it. I'd much rather have a nice Alpine though. hehe. the new rockford fosgate amps are so ugly i wouldn't even consider buying them even if they did sound nice.