TheFlash, it's probably that I'm seeing configuration options for my region (i hate such regionalization). So I looked again and still can't see any GPU options with the closest thing being "Additional PCIe cards". Using this, i can configure a T620 with a PERC H810 ($781.00) or a SAS 6Gbps HBA External Controller ($172.70) or a 750GB ioDrive2 ($14,529.90) or a 1.2TB ioDrive2 ($19,374.30) or even a 2.41TB ioDrive2 Duo ($37,997.30) if i sell a kidney. But I suspect you can get these items considerably cheaper than I can in my region!!!!.
Anyway, I just find this T620 graphics issue rather perplexing as Dell actually added PCIe video capability to this new server that my T610 server did not have (and my T620 had no issues with 'normal graphics' once i modified my graphics card to fit the 8x PCIe slot).
I still suspect there is an issue for Dell to look into, especially if the Tesla C2075 was purchased from Dell (and according to Nvidia, supports video output) but it seems hands have been washed of this problem!