It's been floating around in my head for a long time; how many of you actually use v-sync? Personally, I can't stand playing a game with tearing. Unfortunatley, I get a pretty big hit in performance if I enable it, especially in HL2. However, I have recently found a workaround: I am still using a CRT monitor (Dell M770 19"), but if I max out the refresh rate to 75hz, the tearing in HL2 is hardly noticeable, and I gain an average of 25fps with my 6600GT rig.