I'm setting up a new general purpose PC, and trying to figure out what I need in the way of graphics card and/or motherboard. (I don't have any restrictions on what CPU/GPU/manufacturer/etc - that will follow from this).
Two monitors are regular computer monitors (DVI, at least 1680x1050 - note I don't have these yet), and one is a 1080p TV (HDMI, 1920x1080).
I'd like to be able to play some games (but I do so little that I am probably satisfied with 1-2 year old games, so new lower-end hardware), with that ability on both the TV and one of the LCD monitors. Although I do have a separate PVR system for regular media playback, it would be nice to have 1080p video playback on this one as well (and eventually BluRay, when I get around to that).
It may be nice to have 3 separate displays, but I'd be happy with 2 and having the TV and a monitor show the same thing (I'd be sure to get 1920x1080 LCD monitors if I go this way). Note, if it's 3 separate displays, I need the ability to pick which one does 3D full screen gaming.
I'd also like to be able to output sound over HDMI; and ideally it is the same audio as gets output from the motherboard audio (which should have analog, and coax or optical outputs). The audio will go into both computer speakers/headphones (via analog/spdif), and a Pioneer receiver (via HDMI, or coax if there's no way to do HDMI audio).
What I'm confused about is if this needs to be all on one video card, or split between one card and on-board video on a motherboard, or two cards. Do the monitors go in one, and the TV on another card/motherboard, or does the secondary LCD go on the other card/motherboard?