Combining dynamic and condensor mics for stereo electric guitar recording? I've been playing with two EV-ND46 mics in various configurations to record a two amp stereo electric guitar rig.  I have it about as good as it's going to get but I can't quite get the big, thick, magic of what it sounds like live.  

I'm considering adding a condenser mic (AKG c214) to nab the room sound.  I've never done this.  Any advice on placement or other things I should consider? The two dynamic mics are panned hard left and hard right and I'm hoping the the condenser will sit right in the middle of the mix and fatten it up in the background.  