Thanks for your precious opinion.

Reason I want a video card, base on my past experience, is that the movie with a onboard card looks washed out, with a video card, the colour is deeper and run smoother. Since I may buy a 24" LCD monitor later, I'm worried the onboard card can't support high resolution. I don't play games, then I think  VGA/ DVI should be enough already. If the price difference of motherboard/ video card WITH or WITHOUT HDMI is not significant, then choosing one with HDMI will be more future-proof. I can put up with minor computer lag, but good viewing experience is my top priority, since I'm looking at the screen, not the casing.

Another thing that came to my mind is more technical to me.
-If I choose processor with 1066FSB, can I pair it with PC6400 DDR2ram (800Mhz only)?
-Now many HDD and DVDRW are 'SATA' or 'SATA2', so I must buy a motherboard with SATA?