crutchfield is great to buy from, they have great technical support, rockford makes really good stuff as does JL but you pay alot with JL for the name so thats something to keep in mind.

The amp(s) you buy depend on the speakers you buy, also depends on weather or not you want to power up the fronts, component sets are never a bad idea and there are some really good ones that can be had at a great price. If you want a really nice sounding system plan for 2 amps one for the sub(s) and one for the front stage get a good deck with hi voltage pre outs such as eclipse. When choosing you amps choose amps that match the speakers you buy power wise and its always better to have to much power, you'll hurt your speakers faster by not having enough power then you would by having to much.

Also keep in mind you are often better off having one really good sub then two not so great ones, you can buy all the crappy speakers in the world then some guy with 1 sub and 1 set of components makes you sound like crap, and you dont want that! hahaha your better off buying better gear and getting a little bit less then buying low level stuff and having more. Like one really good 12" sub and a good set of comps up front with two really good clean amps as opposed to a bunch of over rated no name stuff.

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