Actually, i encode about 1-2hrs of video every month (currently still SD, but soon HD). For me every minute gained from the encoding time is a minute won. I was the happiest when i changed from E2160 (oc 3,2ghz) to Q6600 (oc 3,3Ghz), wich was in a different league. If i can get a i7 920 to 3400+ mhz i think ill be a happy camper.