I was on the verge of going watercooling on this new Prescott due to the high temps (to me). Idle was 50C-53C and 75C under full load. I haver a Lian Li PC65B. This was with wires running everywhere, basically a jumbled mess. I took out the stock ADDA 80mm fans and replaced them with YS Tech ones (2 in front sucking to blow over thehard drives. One in back sucking out (Vantec Tornado 80mm on CPU sucking heat off the cpu out of a custom blow hole I made in the side) and another YS Tech 80mm in top sucking out. I rerouted the wiring best I could to provide less restrictions on airflow through the case. Now, idle temps are 43C and full load is about 65. Heatsink is an Alpha PAL8942T. I may just try watercooling to see how cool it can get and rid myself of this hairdryer sounding Vantec Tornado. By the way, this is on my play machine 2.8 Prescott running at 3650 on a 8KNXP Rev2 with 1GB Mushkin "Special" 222 PC3200. It runs stable but a little too loud. I don't have room in the case for an internal water cooling system. I want an external system to cool the Prescott and the ATI X800 Pro (575/575) so I can also dump the vantec card cooler under my X800. Can anyone recommend an external water cooling system? I am not sure the Corsair system would get both of thm cool though.