Re: Which poteniostat to buy? (Australia)

Mike,
At the risk of being commercial, consider Gamry ( www.gamry.com ). 
Gamry has an Australian representative
www.gamry.com/Sales/InternationalDistributors/International_Distributors.htm
and competes favorably in price and performance with the choices you
listed.
Bob Rodgers
www.gamry.com
www.consultrsr.com