If the onboard video with that board is also an ATI and you get the HD4870 you can just pop the card in without trouble. Technically you wouldnt even have to update video drivers since it can recognize both integrated and the new card....
Looking at your screenshots, you're on a 32bit version of windows 7 and your CPU doesnt even support 64bit operating systems. You cant use all your RAM.
As I said, the GTS250 and the 9800GTX are the exact same card. The only difference is slightly less power used by the GTS250. Since the GTS also costs less, theres no reason to buy the 9800GTX or GTX+ anymore. Heres some GTS250 reviews...
I just looked it up, thats a lot of room. If you route your cables and wires right you wouldnt have any problems. Just be kinda creative about keeping them out of the way of major components. In my computer for instance, I routed nearly...
With only room for a 10" GPU you're going to be kinda limited. Even the shortest, the GTS250 may not fit. What case do you have?
Vorxel sculpting seems to be working on my computer, but I'm using the non cuda version and its...