I bought a "Mercier" from eBay..
I've been off the boards for a while so I don't know if there has been much discussion of these track bikes. Feels like the bike equivalent of buying a Tommy Hilfiger shirt from that guy on the freeway exit ramp, but hey the price is right. Obviously the components are nothing special, but I actually like the frame and I figure I can just replace stuff if/when it goes bad. (I wish it came with the Sugino 75 cranks like the KHS but oh well.)