Not sure if you're trying to buy everything from one spot. If not, Crutchfield has some pretty good deals on the Elac Debut 2.0 series. You could get your LCR with (2) Debut B5.2 and (1) Debut C5.2 for ~$350, get a pair of in ceilings for about $200/pr, then grab a HSU VTF-2 MK5 subwoofer that would absolutely crush that Speedwoofer. Same price.
I think
@shadyJ might agree with the assessment on the HSU vs the Speedwoofer, and he's a good man (read: one of the best) to ask about subs.