It all depends on a few key questions, what kind of music you like, what kind of money do you want to spend, do you have room for an extra battery? There are more things to think about, but those will get the ball rolling. I am a diehard Wet Sounds fan, I love the company, the people, and the product. Although, my eyes have been opened as of late that there are some other good choices out there. I will stick to my Wet Sounds as they stand behind their products and that means a lot to me. If you aren't wanting to go too over the top, some decent 6.5's with an amp will make a big difference, if you like a little low, that self powered AS-10 is a great powerful unit. I would look around in your area and see if there are any good stereo shops that you can do some comparisons for yourself. I would look at the layout and see where you could add a couple more 6.5's as 4 will leave some dead spots I would think. Only other thing I can really say is try to find quality products, it may cost you a bit more, but then you don't end up with a 3000 watt amp for $100 that is more like a 300 watt amp, and a piece of crap at that.
