New
#41
Disable as in unplug it from power Yes you definitely want to do that
If the video card did not come with the shorter plates you can always pick them up at Radio shack or Fry's... they are cheap :)
The existing cable connection plate can be used as the second mounting plate for the vga port,
Take a picture of the back of your machine so we can tell how many slots are there now,
Cheers.