One less talked about mic setup: close mic with the dynamic with the tone a bit darker and the drive just a bit cleaner than you are aiming for then play or replay a loop while walking around listening to the walls. I often find there is a spot where the reflections just add something special . Mic up that bit of wall (yes, facing the wall) with the Rode.
Nearby rooms will often also be a fantastic place to record the ambience of. Mixing in a little of these smaller sounding tracks with the close miced can create magic.
