3 pin connecter only fits on 1 way there is a plastic guard, which doesn't show in the intel pic. Issue is that pwm capable (ie with 4 wires to enable pwm monitoring) just don't seem to be available. searching 4 pin just brings up the normal 3pin + 4pin molex. The Artic 120's that are in my Overclockers thread are about the only lead will chase up some of the uk stockists.
Stability Progress: Memtest ran 14 passes clear. left Orthos running rig crashed to dos.