okpay has probably the lowest commissions
And if you think you pay too much for the operation, as far as I know, about fees you should contact directly to the bank, which services you use.

They also gave me some advice: if the withdrawal amount does not exceed $ 1,000 it is more cost effective to withdraw money from OKPAY via money transfer systems, and if the amount is much higher, more cost effective is to use bank transfer.