Ok so, i really want this card, but i don't know if it'll either fit or i'll be able to actually use it. Now, this card does take up two PCI - Express slots, but that is no concern of me. Right now, i have a 9600gt 512mb and i thought that card was huge. So if i replace the 9600gt , will the radeon hd card be able to fit in my computer? I have no clue if the latter gpu is bigger or not. Another question is that, if i have 1 pci e connector, will the card run fine ? Keep in mind i have a 500W power supply.