I have a 9600 gt Low profile low power version in a setup like that. You can overclock and make that motherboard do raid 0 with the all raid bios update just so ya know... Makes a somewhat junky computer nice. i have 2 setup like this. Have a e4300 at 3.0ghz and a e4600 at 3.2 lookup pad mod it works great on the vostro 200 get a free performance boost.
i thought you couldnt overclock on dell computers. ill try doing it myself later.