For their Fall and Winter 2009 Collection Adidas Originals has nice mix of Adidas ZX. In the mix are pairs of the ZX8000, ZX9000, ZX700, ZX700, and ZX500.
Here is another Olympic themed release from Adidas featuring matching Adidas ZX 500 and an Adidas S-Olymp Pict TT Jacket. You can pick them up at Overkill.