I am lucky enough to have a friend who is giving me two 2x12 Mills Acoustic Afterburner cabs. All I need to do is put new drivers in them! I use a passive Birdsong Corto and a Musicman stingray and either an Ashdown Superfly 500 or an Ashdown mag 300. I want to make two 8 ohm cabs cable of handling up to 300-400 watts each. So what do ya think? Which drivers should I go for? Really need a steer here, guys.