For those of you who are interested, I hooked up my new RF 15 speakers last night, moved my old Canton's to the back, ran some new 14 guage speaker wire (not monster, in spite of severe pressure from salesman both at A and B Sound and Radio Shack), and i am very pleased to say that my setup is very

satisfying.
I put in the Pink Floyd Pulse concert DVD.

Wow! What a difference some nice front speakers made. The Center blended perfectly. The excess bass or muffled sound disapeared. Right from the opening "Shine on Crazy Diamond" I was enveloped in a clear uplifting sound experience. And it got better from there on.
After Pulse, I slapped in Gladiator just to hear how a movie may sound. Again the opening battle scene in DTS was fantastic. Dialogue was from the centre, ambiant noises from the applicable speakers was clear and balanced. My sub accepted the bass at crossover perfectly.
My only problem is.....now how do I justify a new reciever to my significant other!
Thanks to all for your inputs and advice on this thread.