I've got a home office, about 15x15. In it, I've got 4 PC's on 3 monitors. 2 AMD XP 1800+, 1 AMD XP 1600, and an old Pentium 400. I'm using traditional ATX style cases, and pretty standard CPU heat syncs and case fans, and they keep the CPU's in the 122-132 F range. The problem is, this room gets pretty damn warm in the summer. The XP 1600 seems to be the worst offender. I can turn it off for a day, and the room cools off considerably. So my question? Is there a trick to keeping the CPU's from burning up that doesn't necessarily overheat the ambient room temperature? Will watercooling not have as much effect on air temperature? Thanks.