Looking for HDCP compliant AGP card

[drew and not u]

I just picked up an old Dell Dimension 4600. It's got a 2.6 Northwood and 256MB of DDR. I'm ordering couple 512 sticks for it, and I'm tinkering with getting a Prescott with HT to put in there. Right now it's using onboard video, but it does have an AGP slot. I want to turn this into a media center, possibly with a bluray drive. I'm looking for a videocard to meet these requirements. It needs to be HDCP compliant (not like some of the older ones were, I mean actually compliant and enabled).

I was looking at this ATI card. It says in the specs that it's HDCP ready.
I'd really prefer an Nvidia card. This one doesn't list being HDCP ready, but it does mention HDTV connectivity. I'm fairly certain it would work, but I want to be sure before I make any purchases.