Don't take this post as me being a fanboy of any sort. I've ran the Alpine Type-S, Powerbass, Sony, Memphis entry level, and my Fosgate powers. And from them all, the Fosgate Powers obviously took the cake. (If that's an expression?) But regardless, my friend drives a Grand Am, and I had him order these for drop-ins. For the price tag, and the odds of you ever amplifiying them, I'd stick with these.
I am currently running 400watts rms to my speakers alone, and i'd have a hard time going back to head unit power. BUT, amplifying them comes with a price tag. To buy an amplifier even worth using to amplifiy anything is gonna cost you around $150.00, knowing where to look. Regardless, I liked the way these Punches sounded off of head unit power. And would recommend them to anyone. And for $50.00 and responding the way they do to the little power they were seeing, they would be my pick.
http://cgi.ebay.com/ROCKFORD-FOSGATE... t_4123wt_1135