Yeah E-man, I see that. But he said he tried a 9600GT, and it wouldn't fit. To me, it does look like he has plenty of room, but I have to believe what he says ATM.
*Off Topic*
And as far as GPU crunching, I believe that it would work fine, it just may not give you all the PPD you deserve with that card.
*Back on Topic*
Like I said josmil, I'm not sure what to say. It really does look like you have enough room for whatever card you want. You may have to move your HDD up or down a couple bays, but other then that you should be fine.