Yea, it'll work and it is very easy. Plug one end in the video card, one end in the monitor / hdtv. nothing more complicated.
some people with RPTV (crt variety) need the component out from a card to work. most (if not all) modern DLP / LCD direct view or rear projection tvs all have DVI / HDMI inputs. if you do not have a DVI input and have a HDMI, then froogle for a converter. it is 10-20 bucks shipped, don't pay for the monster cable hype.
liver