I'm in need of two more wireless mics for our upcoming musical. We have four Shure ULX receivers, only two of which are being used with body packs (we have 4 handhelds). I'd like to purchase 2 more ULX packs and capsules... this way we can save on the cost of the receivers. My question is where to look to make the purchase. Obviously, I want the best price I can find. Full Compass has the ULX transmitter listed at $320.66 each. Any idea if that's pretty much the going rate or if I could do better? Thanks!