Gotcha. We respect your budget. The Klipsch are not bad, but probably not value leaders either.
The Hsu bookshelves more closely adhere to the basics, such as flat frequency response, than Klipsh has with the 600M, plus the Hsu's real wood veneers are far classier IMO. I would see what sort of package deal (and return policy) Hsu would make if you bought speakers as well as your sub from them.
The reason for my question to James stems from noting signifigant improvement from using three identical speakers as L, C, & R, and the differences between the specific speakers in question. Even if the speakers are not perfect in and of themselves, the uniformity of panning sounds by using identical speakers on all front channels results in one less audible tell (a big one), so attention is maintained on the content and not drawn to the gear. So my conjecture is that three CCB-8, or three Klipsch 600M if you go that way, would trounce any mish-mash of disparate speakers. Since you're still in the early stage, you may want to consider taking this route.