HTPC Card suggestions (for bbc hd)

Hi,

I'm thinking about purchasing an Nvidia dedicated PCI-E card to replace my onboard HD4200 graphics. Mainly due to the problems decoding BBC HD content, that seems to only affect ATI cards.

I was looking at this:

http://www.scan.co.uk/Products/1GB-P...PASSIVE-H-Sink

Or

http://www.scan.co.uk/Products/512MB...-DL-DVI-I-HDMI

I'd like peoples thoughts as I want it to work with my Lite-on blu-ray drive. I also read somewhere Nvidia cards are better out of the box with regards to "black colour reproduction" with LCD TVs?

Please let me know your thoughts.

Cheers,
Adrian