I would also lean toward the Eclipse woofers more; those and also the IDMax that Audiolife mentioned. Dont get me wrong, the W7's are a great woofer that had a lot of research put into them, however, the more I listen to them, the more disappointed I become. IMO- they are not worth the price tag they tote with them.
The Eclipse offers a better real world response and output, as well as a lot better SQ capabilities from what I have seen.
I'd listen to the Eclipse and the IDMax closely and choose between those two primarily.
Not only do they cost less, but in all reality, they are just as capable as the W7, if not superior.
take it easy,
-zane