Separate post (separate question): I see Norco sells a metal 3x120mm bracket for the "new" RPC-4020. I definitely have the "old" one...would it still work (aka, anyone tried it?). I'm not averse to drilling a few holes if I have too.
My room is awful toasty (even though it's plenty cold outside...) and my Yates (DM80-12s) aren't doing as well as they could be IMO. Granted temps are a bit higher right now because I'm in the middle of shuffling files around (so lots of I/O), but 3 120s would be quieter and better performing I think.
I ordered a couple last week. I'd be happy to take as many pictures as you'd like for estimation purposes.