When I answer with "BARCO MONITORS", "Pantone Color calibration" and more I discover that many are not ready for the costs for professional gear.
At the very least I suggest you get a Pantone Huey so your colors are properly set.
As to the sound card, Creative Labs still is a winner but now you could hook up with HDMI and let the sound be decoded on some home theater system.
Are LCD TV's so great that when used for a monitor for a computer, do I still need a good graphics card in the computer to have high speed use of my images? Do I still need good external speakers and a good sound card to get the most from a LCDTV/Computer monitor, Cable TV, PC System?
I plan to edit pictures, edit video and do engineering modelling work (the processing kind that makes a graph). I also plan to use the LCD TV as cable tv monitor attached to a VCR/DVD player. I also would like to copy tv programs on my computer hard drive. What do I need to do this?
Do I need a good sound card? Would I put sound out of the TV or do I need a good sound card and good speakers? I am not sure how advances have changed things.