We've looked at PerkinElmer, Beckmann Coulter, Eppendorf, Hamilton, and Tecan and have narrowed it to Hamilton and Tecan. We are leaning towards Hamilton because their 96 head can pipette 1-1000uL while the Tecan 96 head can only do 1-200uL. Haven't found much as far as reviews for the systems. Any advice if you've used these systems would be greatly appreciated.