I would recommend a pair of Digital Designs 1508s and 1000 watts RMS to drive them. Sadly, going bigger than 10" is going to be a royal pain.
Then again, I am running a 13w6v2 Stealthbox in my Mustang, mainly for the ease of fit. If I had to do it all over again, I probably would have gone with a pair of IDMAX 12s in my own custom made fiberglass enclosures. Prior to the Stealthbox, I tried a pair of 10w3v2s sealed (hated them) and a 12" Kicker Solobaric L5 (used the prefab as well as TWO custom enclosures and hated it too).
As for my Civic, I am running ONE Digital Designs 1508 and no one believes that I am running a single 8. Just wait until I am running a pair of those 8s!
As for amplifiers, I am going to go out on a limb and recommend AudioQue for the subwoofers because you can't beat them for the price. The Hifonics BXi XX10 series isn't bad for the price either, provided you know how to set it up properly. Oh, and another option would be AudioQue subwoofers because they are not bad for the $$ spent.