ESS has a really good sale now: $250 for a pair of the large Heil AMT and a pair of mounting kits. A pair of mounting kits is typically $68, so this is a great bundle even if you don't need the kits.
edit: I forgot, I was looking on PE today for the Peerless woofer used in the bucket sub (backordered), and I grinned when I saw Ed's sub mentioned a few times in the reviews.
