what up doc?

What up peoples?
I'm a new fish on the block. I'm driving a 2000 Honda Accord sedan with the four-banger. Oh yeah, its also an automatic. Don't laugh. I know it's not much, but I plan on making it more than your average accord. I just recently installed a stereo system. I put in an Alpine six-disc changer, Performance-Technique 500w amplifier and two 12'' Kenwood subwoofers. My ride bumps. I have not yet modified my engine because I dont know what brands and products to use. Yes, I know the whole I/H/E system, but what types and brands are best. Any feedback will be appreciated.