I have for sale the bottom Prometeia Mach I Cooling unit. It has a P4 mount kit, been used lightly for about a month. Comes with everything needed to mount to a P4 including the seal string. Will sell this outright for $450 or prefer to meet locally. I am located near Dallas, Texas. I will also trade this for a 17'' LCD or larger. I would prefer to do an even trade for a Dell 1800FP. Please PM me if interested. Thank you.