Nice, but what do those run? You have to have plenty power to push them too! And I thought I had headlight dimming problems with just 900 watts (and no thanks to Class A amps). Otherwise, Mikee likee!!
Just like some people have mentioned before, I'd go with Adire or Resonant Engineering (Respl.com). They make some excellent subs (for both sound quality and SPL). Just my $.02...
btw...this is my first post, so yeh. Hopefully I'll be getting a MSP sometime within the next few months.
I'm not reading through all of these pages, but after reading the first post I think you should do 2 10"s. The more cone space the better. Re has some great stuff, however crossfire does also. If I were you, I'd do two 10P1 Crossfires.