New BIOS, 1004 final, is out for the revision 1.x A7N8X boards, and FINALLY we can run 200FSB with stability. Where I could not get past 190 in synch, I am now running 200x11.5 on my XP2600. This is a huge improvement, and it will do this with the same or slightly higher Vcore. Some people are reporting success up to 215FSB at lower multiplyers.
There's a thread running at the AMD forum