I personally can't see purchasing another pc133 m/b. I would just try one of the xp1600+ cpus from newegg and see how it runs in the A7V. With the 1600 and A7V, if you set the fsb at 107 and multiplier at 12.5 or 13(i think it has 13), you'll be pretty close to 1.4. I never tried the xp in my A7V but i've heard they will run. Of course, i guess you could look around for a m/b with 133 fsb and get an xp cpu and that would run pretty quick. I had the A7V ver1.02 and A7V133 ver 1.05 and both were great boards.
I've got an Epox 8k3a+ with an unlocked xp1600, Samsung pc2700 and its running at 170x9.5.
JF
ps: i haven't decided yet, but i've got an Epox 8k3a, 256m Crucial pc2100 and xp1600 that i'm thinking about selling if interested. 4 computers and a laptop is getting to be too much.