Acoustic Zen, Pure Silver Sound, and Ana

I trying to head down the final stretch in purchasing equipment for a stereo system and I am trying to select interconnects and speaker cables. I am currently using Kimbers PBJ interconnects and Analysis Plus Oval 12 speaker cable. At first I thought I was just going to just upgrade to Oval 9s biwired, but after reading the messages here and on Audiogon and Audioreview I have expanded my search. Has anyone had the opportunity to compare products from Acoustic Zen, Pure Silver, and Analysis Plus? Imput would be highly appreciated along with comparisons on the merits of each product side by side. I would love to hear that the sound from Pure Silver is comparible to Acoustic Zen since the price for Pure Silver is lower. I have mainly been experimenting with cables and would like to find a good combination to finish out my system. My system is not currently to bright but slightly restrained. My current systems consists of the following:

Adcom GFP 750 preamplifier
McCormack DNA 225 Amplifiers
Rotel RCD 971 CD Player
Magnepan 1.6 qr speakers
Interconnects to replace: Kimber PBJ
Speaker cable to replace: Analysis Plus Oval 12 single wired
Home made jumber cable: Kimber 1 ft 8tc with silver solder and gold banana plugs.

I mainly listen to jazz (Jane Monheit, Dianne Reeves, Charles Mingus, Gil Evans, Miles Davis, Ella Fitzgerald, John Scofield, Diana Krall, Keith Jarrett, Yellowjackets, Fourplay, Al Di Meola, John Coltrane, Stan Getz, Nina Simone, Patricia Barber, Flora Purim, Dave Brubeck, Bebel Gilberto & Ron Carter)