I want to upgrade my video card on my HP p6813w to a card with HDMI output. I have a few DVD's on hard drives and I want to watch them on my TV. I am using the rca cables now, but that just isn't good enough. When I opened the computer up, it looks to me that a "regular" size card doesn't fit. I am no expert though. Any suggestions on a card that will work will be greatly appreciated.