I have been thinking about upgrading my HTiB to the klipsch rf-35 series. With upgrading i was either going to get 2 fronts and center and use existing receiver (sony str-k502) for awhile or would it be better to upgrade the receiver and work around that, and do speakers last. One more question, while hearing the klipsch i wasn't very impressed with the sub rw-10, would there be any sub around 400-500 range that's bettter. Also i was wondering how is buying HT equipment online is? I do very often on car audio, but don't know if it is safe and reliable for HT.