Saw a post over in another forum asking about the ds12 drivers available on ebay. Well they're Brian's (of rythmik audio) non-servo tc1000 clones, available for a measly 129.99 + shipping.
A pair of these would kill in a sealed 4-5ft^3 box, or even a single driver ported. If anyone needs some simulations let me know.
http://cgi.ebay.com/12-hi-SQ-high-ex...ayphotohosting