these babies WoofersEtc.com - 15-MS124D - Memphis 12" 400 Watt DVC MClass Subwoofer or alpine type r's
Shallow mount 12s would make life easier for you I ordered my Alpine type s 12 inch for 80 bucks on ebay. its like for inches deep vs 6 to 7 like the normal subs. some shallow mounts are only 3.5 inches deep. Shallow mounts dont bump quite as hard, thats why i went to a 12 instead of 10s, so 2 12s would probably give you enough. Alpine type Rs are good. spensive though.