Well man it's really up to your wallet.... power is cheap, or can be... You need to decide what you want to spend and how much power you want... Kickers do not like being underpowered, so your gonna end up with a rather large amp... you might consider Kicker for that as well... How much are you willing to learn????? I mean seriously, do you care or do you just want sound? If you CARE to learn audio/car audio
http://www.bcae1.com/ Start reading, topics are along the right side of the page. Beware, that site is addictive.... and easy...