I have not had a chance to run any benchmarks yet, but I do have 1 question. Has anyone ran a benchmark with 533 memory, then changed nothing but the RAM to 667 sticks? Keep the number of sticks the same too, if you have 1 at 533, then put one in at 667. With the Hyper memory of the x1400 using 1/2 system RAM, I am wondering first, if this makes any difference without changing ANYTHING else at all, and 2) if you can then OC higher with powerstrip once you change to the 667 speed stuff.
I have 1G of 533, but would like 2G of 667 if it helps

Anyway, quickie specs on mine:
CoreDuo 2.0 T2500
x1400
80G 7200 rpm
85w battery (x2)
WSXGA+
etc