keeping your budget in mind here; Buy yourself a small s channel amp or a mono amp and buy one reasonable sub. some recommendations. Check out soundstream for a mono amp I know they have one for cheap but I forgot the name. Also MTX has what I think GREAT quality amps for the money. They have one that's like 130.00 or so. I think it's rated at 50x2 and maybe 75 or 100 bridged. Thats really all you need if it's clean power. As far as subs, DAMN there are so many new ones out there and I haven't heard many of them. I personally like JL AUDIO and you can probably get a w0 or w1 series for about 100.00. With that combo I think you'll achieve the sound your looking for. Keep me posted on your ideas and give me a ball park fig. what your budget is. I'll try to help further if I can.
