ATi's are notoriously bad FSB overclockers...
I haven't seen too many handle high FSB speeds...
Even the older Rage128 core didn't do well, 133FSB was
achievable if you were lucky...
by the 2 people who have radeons that responded, I think
AGP bus speeds of 100Mhz would be out of the question...
Better get a i815e to O/C with the Radeon...
Craig