i have owned DPA 4011s, schoeps cmc64s, neumann km184s, gefell m300s, akg c481s and 461s, and many others. in the price range you are after, i dont think you can beat the AT4051s (cards) or beyer mc930s (cards) or the new little AT4022 omnis. the omnis can be had new for less than $600/pair. the 4051s and 930s can often be found used for $6-700 pair. all are excellent for almost any kind of acoustic application. i realy enjoy close spaced omnis in the kind of space you describe.