What is the diffrence between the a7n8x vs. the a7v8x version ...i hate all these choices ,but the reviews say that the a7n8x is a good board to go with ....upgrading from a k7s5a elite mobo .is it worth the difference to upgrade to a 400 fsb board runnin amd athalon xp 2000 2 sticks of ddr 256 ram pc 2100 nec 1860nx multi sync lcd monitor nvidea fx 5200 graphics 128 ddr video with dvi-d video output (awsome)..