Yes, I've tried a stack of lenses, over 20 in total on the A900. Things like the original 35-105mm AF, 35-200xi zoom, beercan, Sigma 28-105mm UC III. I had high hopes for the 35-105mm but no... it just has terrible geometry and CA. My 35-70mm f4 turns out to have got oil on the aperture (has happened in storage) so useless. The 35-200mm xi is actually not bad at all, and the Sigma is surprisingly good (so good I considered using it as my standard walkaround lens, and may even do so). I don't have an old 19-35mm (that would have to be Cosina, KM's budget lens was a 20-35mm suspiciously similar!) but my local wedding professional used one on his D7D for years before getting a Hasselblad H3D II 39 megapixel.
I had a look at ebay to see whether there were any bargain oldies around to try out... not a chance! Everything is either too ordinary or too expensive.
My final A900 line up - 17-35mm D, 28-75mm D, 75-300mm SSM. 28mm f2 and 100mm f2 SF not as nice on A900 as they were on A700. 50mm f1.4 much better. All macro lenses wonderful, but less macro... 500mm mirror better (really, 750mm was pushing it). 70-210mm f4 possible instead of 70-300mm SSM, I reckon it is a better lens design - less vignetting, less distortion, just as sharp, but lower contrast. Lovely colour. And less range, the main problem. I'm used to 300mm on 1.5X now.