I have a 9700pro.
I cant seem to get a decent OC out of it. It`ll clock to 350/700 stabilly, passing 10+ tests for stability/artifacting, but after about a week or so, when i cold boot, it`ll go garbled, then a restart fixes it. So i just leave it at stock. Even though it had a VGA Silencer on it, and copper ramsinks on the ram and voltage regulators.
I had a GF3 Ti200 that`d clock from 175/400 to 230/510 with a Crystal Orb and the stock ramsinks. With a better GPU cooler and some copper ramsinks, im confident that it`d do 250/550. We`ll soon see, im doing a big cooling mod on it for my college project, then swaping it with a mate for a 19" CRT. Hes getting a TFT, and i need a monitor to build a second system.
I also had a GF2 GTS that would`nt clock at all, even with a BlueOrb and thermaltake ramsinks on it. Sold it though.
And i have a GF2MX (original not 200 or 400), that clocked very well. Did 200/210 with passive gpu cooling. A BlueOrb made it do 220/220. Managed to get 65fps at 1024x768@max in Q3 !!!