I bought a set of wharfedale speakers off of ebay about 2 years ago for $90 a speaker. They were three way tower speakers (Sapphire 89's) and to be honest, the speakers are great. I'm not really *that* biased because I get complements on them as well from friends and stuff when they come over and watch movies. I've gotten quite a few comments on where I'm hiding my sub at. Truth is, I don't have a sub hooked up to that system. All the bass comes from the fronts with a rather modest 6" woofer on it.
If the punch coming from the 6" driver in my fronts is any indicator of performance, then I would imagine that the 12" in that sub can move some serious air as well.
Hang on, I'll check for some reviews.