As smarteyeball and Fumz both said it is more than possible to do, what everyone one missed is this,
would i be able to add that card on pci
which if that is the case I wouldn't bother as you would be limited to the 9500 GT, which in addition to being hampered by being in a PCI slot isn't really fast enough to be of much benefit for Physx.
i also was looking up a couple of pci cards by ati but it really would be no need unless im running multiple monitors
You would only need an extra card for that sort of thing if you wanted to run more than 5 monitors (up to 3 on the 5770, and 2 on the onboard video). With your current motherboard (or any AMD based board starting with the 690G chipset) and any ATI video card it is just a matter of enabling the onboard and the SurroundView option, ATI Hybrid Graphics - Wikipedia, the free encyclopedia
in the bios.