What is a good graphics card for gameplay and/or watching HD movies?

I have an HP Media Center m8100n maxed out with 8 gigs of ram =)My graphics card is an nvidia geforce 6150 SE with i guess 128MB dedicated graphics memory. I intend on getting a blu-ray drive/burner sometime this year. Also, do I need anything extra to watch blu-ray movies aside from an HD monitor? Any help would be greatly appreciated =)

You're current card sounds decent, I would ask HP or NVIDIA.

nvidia geforce8800gtxits the best ATM although i guess some of it could be opinion.i have seen this card in action though i dont have it so im not talking from experiencei have a 6150 le

nVidia GeForce 8800GTX is the best for the value right nowi have one in my machine and i can play crysis on max settingse6750, 4GB 1066 RAM, 8800GTX make a good combination

I have an nVidia 8800 GTX w/ 754MB or memory. It comes with a HDMI port to hook up HD TV or Monitor. The HDMI port is the key. without that you are not getting full HD. It really doesn't matter what you get in terms of a card. Just shop for one that you would want for gaming and make sure it supports HD video and you will be fine. Here's what I have my eye on and I want two of them so I can link them up:http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4037097&csid=ITD&body=MAIN#detailspecs