My first computer was the opposite with cards at the top psu bottom mobo on the elft facign right.
Whats got me is that graphics cards appear to be using the wrong side for their conenctions. My geforce FX 5200 is upside down with all the heatsync/fan pointing to the floor, when it should be pointing up =s.
Even the new 8800 would be facing down not up in the brand enw PC I've designed.

And every half decent PC since my original 380mhz PC I've come across has the same issue too. Do I really have to keep my PC case turned upside down? Or am I missing something?