Before you buy Via, check this out:
Via 133a:
http://www.maxforums.org/gfx/memory.jpg
Good old BX:
http://2cpu.com/Hardware/tyantiger100/rev_f/2x800%20sandra%20mem_2.JPG
Quite a difference eh? Those 2 board where also the same brand btw, just another chipset.
I bought Via, but am now trading...