well biked - yeah, my new frame is a Centurian. Early 80's Sport DLX model. Tange Infinity tubing (main triagle only I'm guessing), nice lugs, originally came with Suntour AR II derailleurs.
I'm currently repainting it (was a dark blue, not it's a medium sapphire blue, (DupliColor Metal Specks 'Ocean Blue' paint) and getting the custom decals and putting a 7speed 105 group on it. Hope to have it all put together by mid October (and hope to get at least a few miles on it before things get really chilly). I have a picture of the bike as I recieved it before strip down here:
http://thecuda.com/bikes.html (bottom of the page). So far I've primered and put the first coat of color on the bike, second coat color hopefully some time this week, and clear after getting the decals in.
Centurians in general, from what I have gathered, were well made like most Japanese imported bikes, the Dave Scott IronMan models being their top end models in the late 80's. Someone posted an extensive history of the brand in the 'introduction' forum (of all places) a few weeks ago.